Page 2 Yealink and/or its respective suppliers are not responsible for the suitability of the information contained in this document for any reason. The information is provided “as is”, and Yealink does not provide any warranty and is subject to change without notice. All risks other than risks caused by use of the information are borne by the recipient.
Page 3: Patent Information
The EULA for this product is available on the Yealink Support page for the product.
Page 4 Administrator’s Guide for Yealink Video Conferencing Systems...
Page 5: About This Guide
Network Deployment Solution, which describes how to deploy network for your systems.  You can download the above documentations from Yealink website: http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage For support or service, please contact your Yealink reseller or go to Yealink Technical Support http://www.yealink.com/Support.aspx online: Firmware Common reasons for updating firmware include fixing bugs or adding features to the device.
Page 6: In This Guide
Administrator’s Guide for Yealink Video Conferencing Systems For more information on how to upgrade the system firmware, refer to Upgrading System Firmware on page 269. In This Guide This administrator guide includes the following chapters: Chapter 1, “System Overview” describes system components, icons and Indicator LEDs.
Page 7: Terms
Cloud platform: This term refers to Yealink VC Cloud Management Service (Yealink Cloud), Yealink Meeting Server, Zoom, BlueJeans, Pexip, Mind and Custom platform. Cloud account: This term refers to Yealink Cloud, YMS, BlueJeans, Pexip, Mind and Custom account. Cloud systems: This term refers to the systems that support Cloud feature, including SIP VP-T49G IP phone, VC desktop and VC110/VC120/VC400/VC500/VC800 video conferencing system.
Page 8: Changes For Release 23, Guide Version 23.6
Administrator’s Guide for Yealink Video Conferencing Systems Appendix B: Trusted Certificates on page  Changes for Release 23, Guide Version 23.6 The following section is new for this version: Registering a YMS Account on page  Logging out of the Cloud Platform on page ...
Page 9: Changes For Release 21, Guide Version 21.20
About This Guide Major updates have occurred to the following sections: Icon Instructions on page  Configuring Video Conference Platformon page  DTMF on page  Dual-Stream Protocol on page  Camera Control Protocol on page  Secure Real-Time Transport Protocol on page ...
Page 10: Changes For Release 20, Guide Version 20.6
Administrator’s Guide for Yealink Video Conferencing Systems Changes for Release 20, Guide Version 20.6 The following sections are new for this version: Firmware on page  Physical Features on page  VCM30 Video Conferencing Microphone Array on page  Remote Control Battery Safety Information on page ...
Page 11: Table Of Contents
System Overview ................1 VoIP Principles ..................................... 1 Physical Features ..................................2 Packaging Contents .................................. 3 VC400 Packaging Contents ............................3 VC120 Packaging Contents ............................6 System Component Instructions ............................10 VC400/VC120 Codec ..............................10 VCC18/VCC20 HD Camera ............................12 Video Conferencing Phone............................
Page 12 VPN ....................................... 94 Configuring Call Preferences ............99 Configuring Video Conference Platform ........................99 Logging into the Yealink VC Cloud Management Service Platform ............100 Registering a YMS Account ............................. 104 Logging into the StarLeaf Cloud Platform ......................106 Logging into the Zoom Cloud Platform ......................108...
Page 13: Table Of Contents
Table of Contents Logging into the BlueJeans Cloud Platform ..................... 114 Logging into the Mind Platform..........................116 Registering a Custom Account ..........................119 Logging out of the Cloud Platform ........................122 Configuring the Third-party Virtual Meeting Room ..................122 Configuring SIP Settings ..............................126 SIP Account ..................................
Page 14 Administrator’s Guide for Yealink Video Conferencing Systems Meeting Password ............................... 184 Meeting Whitelist ................................ 186 Meeting Blacklist ................................187 Keyboard Input Method ............................188 Audio Setting ..................................189 Audio Output Device..............................189 Audio Input Device ..............................191 Adjusting MTU of Video Packets ............................ 194 Dual-Stream Protocol ................................
Page 15 Table of Contents H.235 ......................................263 Defending against Attacks ..............................265 Abnormal Call Answering ............................265 Configuring Safe Mode Call ............................ 266 System Maintenance ..............269 Upgrading System Firmware ............................269 Upgrading VCC20 Camera Firmware ..........................270 Importing/Exporting Configuration ..........................270 Resetting to Factory ................................
Page 16 Administrator’s Guide for Yealink Video Conferencing Systems...
Page 17: System Overview
System Overview System Overview This chapter contains the following information about VC400/VC120 video conferencing system: VoIP Principles  Physical Features  Packaging Contents  System Component Instructions  Icon Instructions  LED Instructions  User Interfaces  VoIP Principles VoIP VoIP (Voice over Internet Protocol) is a technology that uses the Internet Protocol instead of traditional Public Switch Telephone Network (PSTN) technology for voice communications.
Page 18: Physical Features
The latest (or compatible) firmware of system is available.  A call server is active and configured to receive and send SIP/H.323 messages.  The VC400 and the VC120 have same physical interfaces, camera parameters and video resolutions. VC400/VC120 Codec Interface 2 x HDMI...
Page 19: Packaging Contents
W448P (768 x 448), WQVGA (400 x 240) 4CIF (704×576), CIF (352 x 288) Packaging Contents We recommend that you use the accessories provided or approved by Yealink. The use of unapproved third-party accessories may result in reduced performance VC400 Packaging Contents The following items are included in your package.
Page 20 Administrator’s Guide for Yealink Video Conferencing Systems VCP40 Video Conferencing Phone  L-Bracket (for installing the camera)  Camera Mounting Accessories  VCR10 Remote Control  AAA Batteries×2  Power Adapter ...
Page 21 Check the list before installation. If you find that anything is missing, contact your system administrator. Optional Accessory The following item is optional for VC400 video conferencing system. You should purchase it separately if necessary. The CPE80 expansion microphone is used for expanding the audio pickup range.
Page 22: Vc120 Packaging Contents
Administrator’s Guide for Yealink Video Conferencing Systems CPE80 Expansion Microphone  VC120 Packaging Contents We provide the following packaging contents. You can purchase any combination according to your needs: VC120 Package  VC120 Package+VCP40 Package  VC120 Package+VCP41 Package ...
Page 23 System Overview Camera Mounting Accessories  VCR10 Remote Control  AAA Batteries×2  Power Adapter  Cables  Velcro×2  Cable Ties×5 ...
Page 24 Administrator’s Guide for Yealink Video Conferencing Systems Quick Start Guide  VCP40 Package VCP40 Video Conferencing Phone  Ethernet Cable (7.5m)  Locate the Audio In port on the VC120 Codec, and connect it to the Audio Out port of the VCP40 video conferencing phone with the 7.5m Ethernet cable.VCP40 video conferencing...
Page 25 System Overview Expansion Microphone CPE80×2  Ethernet Cable (7.5m)  3.5mm Audio Cable (for connecting a PC/Mobile device to the VCP41)  Locate the Audio In port on the VC120 Codec, and connect it to the Audio Out port of the VCP41 video conferencing phone with the 7.5m Ethernet cable.
Page 26: System Component Instructions
VCR10 Remote Control  VC400/VC120 Codec VC400/VC120 Codec supports 1080P full HD video. It supports both H. 323 and SIP protocols and can connect to a mainstream video conferencing system. Strong audio/video processing ability, rich interfaces, compatibility with different display devices...
Page 27 System Overview VC400/VC120 Codec front panel VC400/VC120 Codec back panel Port Name Description Power Button Powers the system on or off. ① Indicates the system statuses. For more information, refer ② LED Indicator LED Instructions on page 28. Inserts a USB flash drive to one of the two USB ports for storing screenshots, recording videos or capturing packets.
Page 28: Vcc18/Vcc20 Hd Camera
Reset Key Resets the system to factory defaults. ⑬ Allows you to connect a universal security cable to VC400/VC120 Codec, so you can lock it down. The system Security Slot ⑭ cannot be removed when it is locked. VCC18/VCC20 HD Camera The VCC18 HD camera supports 18x optical zoom, white balance and automatic gain.
Page 29 Indicates the system statuses. For more information, refer ① LED Indicator LED Instructions on page 28. The back of the HD camera Port Name Description Connects to the Camera port on the VC400/VC120 Codec ② Camera using a DVI cable.
Page 30: Video Conferencing Phone
You can use the remote control to adjust the position or focus of the camera. The camera can be panned (± 100 degrees range), tilted (± 30 degrees range). Infrared Sensor The infrared sensor is located within the Yealink logo. Aim the remote control at the camera IR sensor to operate the unit. Note Avoid physically turn camera while system is powered on to prevent permanent damaging the camera.
Page 31 System Overview Connect the VCP40 phone to the VC400/VC120 Codec. It can work as an audio device for the system. You can also place calls, answer calls or view directory and history on the VCP40 phone.
Page 32 Administrator’s Guide for Yealink Video Conferencing Systems Component instructions of the VCP40 phone are: Item Description Shows information about calls, messages, soft keys, time, date and other relevant data: • Call information—call duration LCD Screen ① • Icons (for example, •...
Page 33 System Overview VCP41 Video Conferencing Phone The features of VCP41 video conferencing phone are similar to VCP40. For more information, refer to VCP40 Video Conferencing Phone on page 14. The only difference is that the back of VCP41 has a PC/Mobile port, which allows you to connect an optional PC or Mobile Device to your phone, so that VCP41 can work as the audio input/output device of your PC or mobile device.
Page 34 Administrator’s Guide for Yealink Video Conferencing Systems icon will appear on the display device, and the icon will appear on the video conferencing phone. As a result, VCP41 will work as the audio input/output device of your PC or mobile device.
Page 35: Cpe80 Expansion Microphone
System Overview CPE80 Expansion Microphone If your video conferencing room is large, you can add extra CPE80 expansion microphones to the MIC ports on the video conferencing phone to expand the audio range. Video conferencing phone has two MIC ports. Up to two expansion microphones can be connected to a video conferencing phone.
Page 36: Vcm30 Video Conferencing Microphone Array
Administrator’s Guide for Yealink Video Conferencing Systems VCM30 Video Conferencing Microphone Array The VCM30 is a video conferencing microphone array which can work as the audio input device for VC120 video conferencing system. It has 3 built-in microphones which support 360-degree audio pickup at a radius of up to 3 meters.
Page 37 System Overview Muting or Unmuting the VCM30 There is a mute button at the top of the VCM30. You can mute or unmute it in the following scenarios: If you do not want to have your voice broadcast during a call, you can tap the mute button ...
Page 38 Administrator’s Guide for Yealink Video Conferencing Systems To view the VCM30 information via web user interface Click Status. To view the VCM30 information via the remote control: Select Menu->Status->Wired Micpod.
Page 39: Vcr10 Remote Control
System Overview VCR10 Remote Control VCR10 remote control is compact, and has definite function zoning. Users can organize conferences easily using infrared signals. Hardware components of the remote control: Item Description ① Sleep Key Puts the system to sleep or wakes the system up. Located at the bottom left of the screen.
Page 40 Administrator’s Guide for Yealink Video Conferencing Systems Item Description Located at the bottom right of the screen. Label automatically identifies context-sensitive features. ④ Blue Shortcut Key In the idle screen, this is used to save and check the camera preset position, and corresponds to the Preset soft key.
Page 41: Icon Instructions
System Overview Item Description Enters digits.  Long press to generate a special character “@” in  ⑰ the input field. Keypad Enters the pre-dialing screen.  Stores the preset position of the camera.  Generates a special characters “.”. ...
Page 42 Administrator’s Guide for Yealink Video Conferencing Systems Icon Description H.323 account is registered Log into the Yealink VC Cloud Management Service/Yealink Meeting Server Log into the StarLeaf/Zoom/Pexip/BlueJeans/ Mind platform Auto answer Missed calls (this icon displays on the status bar)
Page 43: Icons On The Video Conferencing Phone
SIP account is registered (the icon flashes when it is not registered successfully) H.323 account is registered (the icon flashes when it is not registered successfully) Log into the Yealink VC Cloud Management Service/Yealink Meeting Server Log into the StarLeaf/Zoom/Pexip/BlueJeans/ Mind platform...
Page 44: Led Instructions
The VC400/VC120 Codec is powered on. Solid green The VC400/VC120 Codec is upgrading firmware. Solid red The VC400/VC120 Codec is in sleep mode. Solid orange System exception (e.g., network unavailable, update failure). The VC400/VC120 Codec is powered off, is not connected to the power adapter.
Page 45 Indicator LED on the video conferencing phone: LED Status Description The phone is initializing. Solid red The video conferencing phone is muted when the VC400 is during a call. Flashing red The phone is ringing. The phone is placing a call.
Page 46: User Interfaces
Web User Interface  Remote Control  The following describes how to configure the VC400/VC120 video conferencing system via the two methods above. Detailed operation steps will be introduced in the feature section. Web User Interface You can customize your system via web user interface. To access the web user interface, you need to know the user name and the administrator’s password.
Page 47: Remote Control
System Overview The web structure tree of VC400 is shown as below, (the red highlight is hidden for users with user credentials): You can monitor or place calls via web user interface. You can do the following in the Home page.
Page 48 Administrator’s Guide for Yealink Video Conferencing Systems...
Page 49: Getting Started
 Note Up to two display devices can be connected to the VC400/VC120 Codec. Because the display device is not included in the package, you need to purchase it separately if required. Ensure that the purchased display device supports HDMI input.
Page 50: Installing The Vc400 Video Conferencing System
HDMI cable (Make sure the display device is powered on) (Optional.) Locate the PC port of the VC400 Codec and connect it to the HDMI port on the PC with the supplied HDMI-VGA direct cable for sharing content.
Page 51 Getting Started (Optional) If you purchase VC Dual-camera Box VCB20 separately, you can connect two VCC20 cameras to the VC120 Codec. (Optional) Locate the Audio In port of the VC120 Codec, do one of the following: Connect it to the Audio Out port on the video conferencing phone with the 7.5m Ethernet cable that labeled Audio In, and then connect the free end of the expansion microphone cables to MIC ports on the video conferencing phone.
Page 52: Installing The Camera
Note The VC120 video conferencing system should be used with Yealink original power adapter (19V/3.42A) only. The use of the third-party power adapter may cause the damage to the system. You can fasten all cables with cable ties after all devices are connected.
Page 53 Getting Started Mounting the camera on a TV When the thickness of your TV is between 35-120 mm, you can mount the camera on your TV. Do the following: Lock the camera to the L-bracket. Remove the protection of the Velcro. Put the L-bracket on the top of the TV.
Page 54: Installing Batteries In The Remote Control
Administrator’s Guide for Yealink Video Conferencing Systems through the L-bracket. Lock the camera to the L-bracket, and then connect the other end of the DVI cable to the VC120 Codec. Installing Batteries in the Remote Control Do the following: Open the battery cover on the back of the remote control.
Page 55: Powering The System On And Off
Caution! To avoid corrupting the system, you should always power off the system using the power button on the VC400/VC120 Codec. After turning the power off in this way, wait at least 15 seconds before you unplug the power adapter from the VC400/VC120 Codec. This helps to ensure that the system powers off correctly.
Page 56: System Startup
System Startup After the initializing process, the system will complete startup by cycling the following steps: The LED indicator on the VC400/VC120 Codec illuminates solid green. The LED indicator on the camera illuminates solid green. The display device displays the boot up screen.
Page 57: Setup Wizard
Getting Started use. Setup Wizard When you first start up or reset the system, the display device will display the setup wizard. To complete the setup wizard via the remote control: Set the language displayed on the display device. The default language is English. Press (Next soft key) to continue.
Page 58 (Next soft key) to continue or press (Previous soft key) to return to the previous screen. Edit the site name. The default site name is “Yealink VC400” or “Yealink VC120”. Press (Next soft key) to continue or press (Previous soft key) to return to the previous screen.
Page 59 Getting Started The default administrator password is “0000”. For security reasons, the administrator should change the default administrator password as soon as possible. Note Do remember the new administrator password or keep a copy of the password in a safe place. If you forget the password, you will need to reset the system to the factory settings, and then reset the password or use the default password “0000”.
Page 60 Administrator’s Guide for Yealink Video Conferencing Systems Press (Next soft key) to continue or press (Previous soft key) to return to the previous screen. 10. Configure network settings. The phone will try to contact a DHCP server in your network to obtain network parameters by default.
Page 61: Enabling Communication With Other Systems
Getting Started Yealink video conferencing system supports Yealink VC Cloud Management Service/Yealink Meeting Server/StarLeaf/Zoom/Pexip/BlueJeans/Mind/Custom platform. For more information, refer to Configuring Video Conference Platform on page 99. 13. Press (Complete soft key) to complete the setup wizard. Enabling Communication with Other Systems Depending on your environment, you may need to make the following additional adjustments to the configuration of your video conferencing system.
Page 62: Placing A Test Call From Vcs
Yealink Demo1 to Yealink Demo3 are three default contacts stored in the local directory. You can place a test call to the default contact, and the test call will be routed to the Yealink demo video conferencing system. Yealink demo contacts can help users to test quickly whether...
Page 63: Configuring Network
Configuring Network Configuring Network This chapter provides information on how to configure network settings for the system. Proper network settings allow the system work efficiently in your network environment. This chapter provides the following sections: Preparing the Network  Configuring LAN Properties ...
Page 64: Configuring Lan Properties
Administrator’s Guide for Yealink Video Conferencing Systems Configuring LAN Properties DHCP DHCP (Dynamic Host Configuration Protocol) is a network protocol used to dynamically allocate network parameters to network hosts. The automatic allocation of network parameters to hosts eases the administrative burden of maintaining an IP network. The system complies with the DHCP specifications documented in RFC 2131.
Page 65 Configuring Network Parameter DHCP Option Description client by IP address. Protocol Servers Vendor-Specific Identifies the vendor-specific information. Information Vendor Class Identifies the vendor type. Identifier Identifies a TFTP server when the 'name' field in TFTP Server the DHCP header has been used for DHCP Name options.
Page 66: Static Dns On
Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method change take effect. To configure DHCP via web user interface: Click on Network->LAN Configuration. In the IPv4 Config block, mark the DHCP radio box. (Optional.) Enter the host name of the system in the Host Name field.
Page 67 Configuring Network Parameter Description Configuration Method or off. Web User Interface Default: Off Note: If it is set to Off, the system will use the IPv4 DNS obtained from DHCP. If it is set to On, the system will use manually configured static IPv4 DNS.
Page 68: Configuring Network Settings Manually
Administrator’s Guide for Yealink Video Conferencing Systems Enter the desired values in the Primary DNS and Secondary DNS fields. Click Confirm to accept the change. A dialog box pops up to prompt that settings will take effect after a reboot.
Page 69 Configuring Network Gateway: A gateway is a network point that works as an entrance to another network.  Primary DNS /Secondary DNS: Domain Name System (DNS) servers translates domain  names (for example: www.example.com), which can be easily memorized by humans, to the numerical IP addresses (192.168.1.15) needed for the purpose of computer services and devices worldwide.
Page 70 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method or off. Web User Interface Default: Off Note: If you change this parameter, the system will reboot to make the change take effect. Configures the primary DNS server assigned to the system.
Page 71 Configuring Network Click OK to reboot the phone. To configure a static IPv4 address via web user interface: Click on Network->LAN Configuration. In the IPv4 Config block, mark the Static IP radio box. Enter the desired values in the IP Address, Subnet Mask, Gateway, Primary DNS and Secondary DNS fields.
Page 72: Ipv6 Support
IPv6 is developed by the Internet Engineering Task Force (IETF) to deal with the long-anticipated problem of IPv4 address exhaustion. Yealink IP Phone supports IPv4 addressing mode, IPv6 addressing mode, as well as an IPv4&IPv6 dual stack addressing mode. IPv4 uses a 32-bit address, consisting of four groups of three decimal digits separated by dots;...
Page 73 Configuring Network IPv6 Network parameters need to be configured manually on the system are described below. Parameter Description Configuration Method Configures the IP address mode. Default: IPv4 Remote Control Mode (IPv4/IPv6) Note: If you change this parameter, Web User Interface the IP phone will reboot to make the change take effect.
Page 74 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Default: Blank Note: If you change this parameter, the system will reboot to make the change take effect. Configures the secondary IPv6 DNS server. DNS Secondary Remote Control Default: Blank...
Page 75 Configuring Network (Optional.) If you mark the DHCP radio box, you can configure the static DNS address in the corresponding fields. Click Confirm to accept the change. A dialog box pops up to prompt that the settings will take effect after a reboot. Click OK to reboot the phone.
Page 76: Configuring Network Speed And Duplex Mode
Administrator’s Guide for Yealink Video Conferencing Systems The display device prompts “Reboot now?”. Select OK to reboot the system immediately. Configuring Network Speed and Duplex Mode You can configure the network speed and duplex mode the system uses. The network speed and duplex mode you select for the system must be supported by the switch.
Page 77: Vlan
Configuring Network Parameter Description Configuration Method automatically. The network speed and duplex mode you select must be supported by the switch. If you change this parameter, the system will reboot to make the change take effect. To configure the network speed via web user interface: Click on Network->Advanced.
Page 78: Lldp
Administrator’s Guide for Yealink Video Conferencing Systems regardless of their physical location can greatly simplify network design. VLANs can address issues such as scalability, security, and network management. The purpose of VLAN configurations on the system is to insert a tag with VLAN information to the packets generated by the system.
Page 79 Configuring Network TLV Type TLV Name Description The default value is 180s. End of LLDPDU Marks end of LLDPDU. Name assigned to the system. System Name The default value is “VCS”. Description of the system. System Description Description includes firmware version of the system.
Page 80 Administrator’s Guide for Yealink Video Conferencing Systems TLV Type TLV Name Description Inventory – Firmware Firmware revision of the system. Revision Inventory – Software Software revision of the system. Revision Inventory – Serial Serial number of the system. Number Inventory –...
Page 81: Manual Configuration For Vlan
Configuring Network Enter the desired time interval in the Packet Interval (1-3600s) field. Click Confirm to accept the change. A dialog box pops up to prompt that the settings will take effect after a reboot. Click Confirm to reboot the system immediately. To configure LLDP via the remote control: Select Menu->Advanced (default password: 0000) ->Advanced Network.
Page 82 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method change take effect. Configures VLAN ID for the Internet (WAN) port. Remote Control Default: 1 VID(1-4094) Web User Interface Note: If you change this parameter, the system will reboot to make the change take effect.
Page 83: Dhcp Vlan
DHCP, the system will examine the DHCP option for a valid VLAN ID. The predefined option 132 is used to supply the VLAN ID by default. You can customize the DHCP option used to request VLAN Feature on Yealink IP Phones the VLAN ID. For more information on VLAN, refer to Parameters of VLAN feature on the system are described below.
Page 84: 802.1X Authentication
Administrator’s Guide for Yealink Video Conferencing Systems To configure DHCP VLAN discovery via web user interface: Click on Network->Advanced. In the VLAN block, select the desired value from the pull-down list of DHCP VLAN Active. Enter the desired option in the Option field.
Page 85 Configuring Network Yealink 802.1X Authentication For more information on 802.1X authentication, refer to 802.1X feature parameters on the system are described below: Parameter Description Configuration Method Specifies the 802.1x authentication mode. Disabled  EAP-MD5  EAP-TLS  Remote Control 802.1x Mode PEAP-MSCHAPv2 ...
Page 86 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method change take effect. To configure 802.1X via web user interface: Click on Network->Advanced. In the 802.1x block, select the desired protocol from the pull-down list of Mode 802.1x. a) If you select EAP-MD5: 1) Enter the user name for authentication in the Identity field.
Page 87 Configuring Network 5) Click Upload to upload the certificates. c) If you select PEAP-MSCHAPv2: 1) Enter the user name for authentication in the Identity field. 2) Enter the password for authentication in the MD5 Password field. 3) In the CA Certificates field, click Browse to locate the desired certificate (*.pem,*.crt, *.cer or *.der) from your local system.
Page 88 Administrator’s Guide for Yealink Video Conferencing Systems 4) Click Upload to upload the certificate. d) If you select EAP-TTLS/EAP-MSCHAPv2: 1) Enter the user name for authentication in the Identity field. 2) Enter the password for authentication in the MD5 Password field.
Page 89: H.323 Tunneling
Configuring Network 4) Click Upload to upload the certificate. Click Confirm to accept the change. A dialog box pops up to prompt that the settings will take effect after a reboot. Click Confirm to reboot the system immediately. To configure the 802.1X via the remote control: Select Menu->Advanced (default password: 0000) ->Advanced Network.
Page 90 Administrator’s Guide for Yealink Video Conferencing Systems If H.323 tunneling feature is disabled, the setup processes of an H.323 call are shown below:...
Page 91: H.323 Tunneling On
Configuring Network If H.323 tunneling feature is enabled on both sites, the setup processes of an H.323 call are shown below: The parameter of the H.323 tunneling feature on the system is described below: Parameter Description Configuration Method Enables or disables the H.323 tunneling on the system.
Page 92 Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of H.323 Tunneling. Click Confirm to accept the change. To configure H.323 tunneling for H.323 via web user interface: Click on Account->H.323. Select the desired value from the pull-down list of H.323 Tunneling.
Page 93: Configuring The System For Use With A Firewall Or Nat
Unless the firewall is designed to work with video conferencing equipment, you must configure the firewall to allow incoming and outgoing traffic to the VC400/VC120 system through the reserved ports. Users placing calls through a firewall to system may experience one-way audio or video if the firewall is not properly configured.
Page 94: Restricting Reserved Ports
Each additional video participant requires 8 UDP ports. Each additional audio participant requires 2 UDP ports. Make sure at least 200 TCP ports and 200 UDP ports are reserved for VC400&VC120. Use the following information as a guide when determining the range of port numbers.
Page 95 10 UDP 50000-50009 10 UDP 50000-50009 8-way MCU presentation and 4 TCP 50000-50003 an audio call Eight-way video VC400/VC120 call with a 58 UDP 50000-50057 with 8-way 58 UDP 50000-50057 presentation and 16 TCP 50000-50015 an audio call...
Page 96 Administrator’s Guide for Yealink Video Conferencing Systems In the Reserve Port block, configure the TCP port range in the TCP Port Scope field. Click Confirm to accept the change. A dialog box pops up to prompt that the settings will be implemented after a reboot.
Page 97: Network Address Translation
Manual—the system uses the  Remote Control manually configured NAT Static NAT public address. Web User Interface Auto—the system obtains the  NAT public address from the Yealink-supplied server. Default: Disabled NAT Public IP Remote Control Displays the NAT public  Address...
Page 98 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method address automatically obtained Web User Interface from the Yealink-supplied server if the static NAT is set to Auto. Configures the NAT public  address for the system if the static NAT is set to Manual.
Page 99 Configuring Network If multi-level intranet network has deployed in your environment, and you experience the one-way audio or video problem, select Compulsory from the pull-down list of Route Traversal to solve this problem. Click Confirm to accept the change. To configure Static NAT for SIP account via web user interface: Click on Account->SIP Account.
Page 100 Administrator’s Guide for Yealink Video Conferencing Systems To configure Static NAT for SIP IP call via web user interface: Click on Account->SIP IP Call. Select StaticNat from the pull-down list of NAT Traversal. Click Confirm to accept the change. To configure static NAT via the remote control: Select Menu->Advanced (default password: 0000) ->NAT/Firewall.
Page 101 For more information, refer to RFC3489. Capturing packets after you enable the STUN feature, you can find that the VC400/VC120 sends Binding Request to the STUN server, and then mapped IP address and port is placed in the Binding Response: Binding Success Response MAPPED-ADDRESS: 59.61.92.59:19232.
Page 102 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Note: STUN works only if this parameter is set to STUN. To configure STUN server via web user interface: Click on Network->NAT/Firewall. In the STUN Config block, select the desired value from the pull-down list of Active.
Page 103 Configuring Network Select STUN from the pull-down list of NAT Traversal. Click Confirm to accept the change. To configure STUN for SIP IP call via web user interface: Click on Account->SIP IP Call. Select STUN from the pull-down list of NAT Traversal. Click Confirm to accept the change.
Page 104 Administrator’s Guide for Yealink Video Conferencing Systems Enter the port of the STUN server in the Port field. Press the Save soft key to accept the change. To configure STUN server for SIP IP call via the remote control: Select Menu->Advanced (default password: 0000) ->SIP IP Call.
Page 105 Configuring Network The rport parameter on the system is described below: Parameter Description Configuration Method Enables or disables NAT Rport feature. You can configure it for the Web User Interface RPort SIP account or SIP IP call separately. Default: Enabled To configure rport feature for SIP account via web user interface: Click on Account->SIP Account.
Page 106: Intelligent Firewall Traversal
Click Confirm to accept the change. Intelligent Firewall Traversal The intelligent firewall traversal feature allows the VC400/VC120 system to check the media source address and port of incoming RTP packets, and then send back RTP packets to the address where incoming RTP packet comes from, instead of the address provided in the Session Description Protocol (SDP).
Page 107: Quality Of Service
Configuring Network To configure intelligent firewall traversal via web user interface: Click on Network->NAT/Firewall. Select the desired value from the pull-down list of Audio&Video Intelligent Traversal. Select the desired value from the pull-down list of Data Intelligent Traversal. Click Confirm to accept the change. Quality of Service Quality of Service (QoS) is the ability to provide different priorities for different packets in the network.
Page 108 VoIP can guarantee high-quality QoS only if the voice, video and data packets are given priority over other kinds of network traffic. Yealink video conferencing systems support the DiffServ model of QoS. DSCPs for voice, video and data packets that can be specified respectively.
Page 109 Configuring Network Parameter Description Configuration Method packets. Web User Interface Valid Values: 0-63 Default: 63 Note: If you change this parameter, the system will reboot to make the change take effect. Specifies the DSCP value for video packets. Valid Values: 0-63 Remote Control Video Priority Default: 34...
Page 110: Vpn
Administrator’s Guide for Yealink Video Conferencing Systems In the QoS block, enter the desired values in the corresponding fields. Click Confirm to accept the change. A dialog box pops up to prompt that the settings will take effect after a reboot.
Page 111 The file format of the compressed package must be *.tar. The VPN-related files are: certificates (ca.crt and client.crt), key (client.key) and the configuration file (vpn.cnf) of the VPN OpenVPN Feature on Yealink IP Phones client. For more information, refer to VPN feature parameters on the system are described below.
Page 112 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method files to the system first before enabling the VPN feature. If you change this parameter, the system will reboot to make the change take effect. Uploads the compressed package of Upload VPN VPN-related files (*.tar) to the...
Page 113 Configuring Network To configure VPN via the remote control: Select Menu->Advanced (default password: 0000) ->Advanced Network. Check the VPN checkbox. Press the Save soft key to accept the change. The display device prompts “Reboot now?”. Select OK to reboot the system immediately.
Page 114 Administrator’s Guide for Yealink Video Conferencing Systems...
Page 115: Configuring Call Preferences
Yealink video conferencing system can log into the Yealink VC Cloud Management Service/Yealink Meeting Server/StarLeaf/Zoom/Pexip/BlueJeans/Mind/Custom platform. Users can access VMR using VC400&VC120 video conferencing system, whilst benefiting from both the features provided by video conferencing system, such as 1080p HD video and audio, and features provided by Yealink Meeting Server/StarLeaf/Zoom/BlueJeans/Pexip/Mind, including high end customization &...
Page 116: Logging Into The Yealink Vc Cloud Management Service Platform
You can log into the Yealink VC Cloud Management Service platform, and dial other Yealink Cloud numbers to establish a conversation. If you want to place a call to a Yealink Cloud contact who is in the same Yealink Cloud directory as you, you can enter the 9-digit Cloud number or the extension (the last four Cloud number) to place a call.
Page 117 Yealink VC Cloud Management Service platform. Build-in Cloud Number: This  method uses build-in Cloud number to log into the Yealink VC Cloud Management Service platform. The number consists of 7 digits that are generated according to MAC address, and it never expires.
Page 118 Click on Account->VC Platform. Select Enabled from the pull-down list of Cloud Account. Select Yealink VC Cloud Management Service from the pull-down list of Platform Type. Select the desired sign-in method from the pull-down list of Login Type. Select Build-in Cloud Number.
Page 119 Configuring Call Preferences Enter the IP address or domain name of the Yealink VC Cloud Management Service platform in the Server field. Click Confirm to accept the change. To configure Yealink VC Cloud Management Service platform via the remote control: Select Menu->Advanced (default password: 0000)->Video Conference Platform.
Page 120: Registering A Yms Account
, and the LCD screen of the video conferencing phone displays A Yealink Cloud account can be used to log into five Cloud systems at most simultaneously. Note If you log into Yealink VC Cloud Management Service platform using the built-in Cloud number, your directory will not include the Yealink Cloud contacts, but you can dial other Yealink Cloud numbers to establish a conversation.
Page 121 ID next time. To configure Yealink Meeting Server via web user interface: Click on Account->VC Platform. Select Enabled from the pull-down list of Cloud Account. Select Yealink Meeting Server from the pull-down list of Platform Type.
Page 122: Logging Into The Starleaf Cloud Platform
If administrator enabled the Device upgrade feature on Yealink Meeting Server, video conferencing systems that log into the Yealink Meeting Server will upgrade firmware automatically once the current firmware version is different from the one on Yealink Meeting Server. Logging into the StarLeaf Cloud Platform You can log into the StarLeaf Cloud platform.
Page 123 Default: Enabled Remote Control Cloud Account Note: If it is disabled, the system Web User Interface cannot log into the StarLeaf Cloud platform. Configures the platform type. Yealink VC Cloud Management  Service Yealink Meeting Server  StarLeaf  Remote Control Zoom ...
Page 124: Logging Into The Zoom Cloud Platform
Administrator’s Guide for Yealink Video Conferencing Systems Configure the StarLeaf Cloud platform. Click Confirm to accept the change. To configure StarLeaf Cloud platform via the remote control: Select Menu->Advanced (default password: 0000)->Video Conference Platform. In the Cloud Account field, check the Enabled checkbox.
Page 125 Description Configuration Method Default: Enabled Web User Interface Note: If it is disabled, the system cannot log into the Zoom Cloud platform. Configures the platform type. Yealink VC Cloud Management  Service Yealink Meeting Server  StarLeaf  Remote Control Zoom ...
Page 126 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Configures the interval (in seconds) that the system sends keep-alive messages to the registry server. So Web User Interface Keep Alive Interval that the registry server will keep the connection open with the client.
Page 127: Registering A Pexip Account
Enables or disables the Cloud feature. Remote Control Default: Enabled Cloud Account Web User Interface Note: If it is disabled, the system cannot register the Pexip account. Configures the platform type. Yealink VC Cloud Management  Service Yealink Meeting Server  StarLeaf  Remote Control Zoom ...
Page 128 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Specifies the password associated with the user name when registering a Remote Control Password Pexip account. Web User Interface Default: Blank Configures the IP address or domain Remote Control Server/Server name of the Pexip server.
Page 129 Configuring Call Preferences Parameter Description Configuration Method that the registry server will keep the connection open with the client. Default: 30 To configure Pexip platform via web user interface: Click on Account->VC Platform. Select Enabled from the pull-down list of Cloud Account. Select Pexip from the pull-down list of Platform Type.
Page 130: Logging Into The Bluejeans Cloud Platform
Administrator’s Guide for Yealink Video Conferencing Systems After successful registration, the display device displays , and the LCD screen of the video conferencing phone displays Note You can also register the Pexip account using SIP or H.323 protocol. For more information, refer to...
Page 131 Configuring Call Preferences Parameter Description Configuration Method signaling. TCP—provides reliable transport  via TCP for SIP signaling. TLS—provides secure  communication of SIP signaling. DNS-NAPTR—performs the DNS  NAPTR and SRV queries for the service type and port if no server port is given.
Page 132: Logging Into The Mind Platform
Administrator’s Guide for Yealink Video Conferencing Systems Configure the BlueJeans Cloud platform. Click Confirm to accept the change. To configure BlueJeans Cloud platform via the remote control: Select Menu->Advanced (default password: 0000)->Video Conference Platform. In the Cloud Account field, check the Enabled checkbox.
Page 133 Configuring Call Preferences Parameter Description Configuration Method cannot log into the Mind platform. Configures the platform type. Yealink VC Cloud Management  Service Yealink Meeting Server  StarLeaf  Remote Control Zoom  Platform Type Web User Interface Pexip ...
Page 134 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method messages to the registry server. So that the registry server will keep the connection open with the client. Default: 30 To configure Mind platform via web user interface: Click on Account->VC Platform.
Page 135: Registering A Custom Account
Enables or disables the Cloud feature. Remote Control Default: Enabled Cloud Account Web User Interface Note: If it is disabled, the system cannot register the custom account. Configures the platform type. Yealink VC Cloud Management  Service Yealink Meeting Server  StarLeaf  Remote Control Zoom ...
Page 136 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Configures the IP address or domain Remote Control Server/Server name of the custom server. Host Web User Interface Default: Blank Configures the port of the custom server. Web User Interface...
Page 137 Configuring Call Preferences To configure custom account via web user interface: Click on Account->VC Platform. Select Enabled from the pull-down list of Cloud Account. Select Custom from the pull-down list of Platform Type. Configure the custom account settings. Click Confirm to accept the change. To configure custom account via the remote control: Select Menu->Advanced (default password: 0000)->Video Conference Platform.
Page 138: Logging Out Of The Cloud Platform
Administrator’s Guide for Yealink Video Conferencing Systems Logging out of the Cloud Platform To log out of the Cloud platform via web user interface: Click on Account->VC Platform. Select the desired Cloud platform from the pull-down list of Platform Type.
Page 139 Configuring Call Preferences If you do not register a Cloud account, or you have registered a Yealink Cloud account or YMS account, you can configure a third-party VMR in advance, so that you can quickly join a VMR without registering a third-party Cloud account.
Page 140 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Default: Blank Note: It only works when you do not log into a Cloud platform, or you only register a Yealink Cloud account/YMS account. Configures the VMR name. Default: Blank...
Page 141 Configuring Call Preferences To configure the third-party VMR via web user interface: Click on Setting->3rd-VMR. Enter VMR name and server address in the corresponding fields respectively. Click Confirm to accept the change. The VMRs will appear at the pull-down list of Call Type on your dialing screen. You can select the desired third-party platform to call corresponding VMRs quickly.
Page 142: Configuring Sip Settings
Video Conferencing System User Guide For more information on how to use refer to Configuring SIP Settings Yealink VC400/VC120 video conferencing system support Session Initiation Protocol (SIP). If your server supports SIP, you can use SIP to establish calls. SIP Account To establish calls using SIP, you can configure a SIP account for the system.
Page 143 Configuring Call Preferences Parameter Description Configuration Method Default: Disabled Configures the IP address or domain name of the outbound proxy server Outbound for the SIP account. Remote Control Server/Outbound Default: it is configurable only when Web User Interface Proxy Server the Outbound Proxy Server is enabled.
Page 144: Sip Ip Call
Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method that the registry server will keep the connection open with the client. Default: 30 To configure SIP account via web user interface: Click on Account->SIP Account. Configure the SIP account settings.
Page 145 Remote Control Note: When it is set to Enabled on SIP IP Call Web User Interface both sites, the VC400/VC120 can call the far site by dialing an IP address directly. Configures the type of transport protocol for the SIP IP call.
Page 146: Configuring H.323 Settings
Press the Save soft key to accept the change. Configuring H.323 Settings Yealink VC400/VC120 video conferencing systems support H.323 protocol. If your network uses a gatekeeper, you can register an H.323 account for the system, and specify its H.323 name and extension.
Page 147 Configuring Call Preferences Parameter Description Configuration Method Default: Enabled If it is set to disabled, the system cannot place or receive calls with the H.323 protocol. Specifies the name that gatekeepers and gateways use to identify this system. You can make point-to-point Remote Control calls using H.323 Name...
Page 148 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Gatekeeper IP Remote Control Configures the IP address of the Address secondary gatekeeper. 2/Gatekeeper Web User Interface Server 2 Configures the port of the primary gatekeeper. Remote Control Gatekeeper Port...
Page 149 Local Early Media If it is set to Enabled, the system will send video SDP twice during a call to solve the compatibility between Yealink device and certain devices. To configure H.323 account via web user interface: Click on Account->H.323.
Page 150 Administrator’s Guide for Yealink Video Conferencing Systems Configure the H.323 account settings. Click Confirm to accept the change. After successful registration, the display device displays , and the LCD screen of the video conferencing phone displays To configure H.323 account via the remote control: Select Menu->Advanced (default password: 0000) ->H.323.
Page 151: Enabling H.460 Support For H.323 Calls
Configuring Call Preferences Enabling H.460 Support for H.323 Calls Yealink video conferencing systems support firewall traversal of H.323 calls using H.460 protocols. You must have an H.460 server configured in your environment for this feature to function properly. Note If you configure H.323 settings and enable H.460 support, the system ignores Static NAT settings.
Page 152 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method 65535. Default: 1719 Configures the IP address of the secondary H.460 server. Remote Control Gatekeeper IP Address Note: It is configurable only when 2/Gatekeeper Server 2 Web User Interface the Gatekeeper Mode is set to Manual.
Page 153: Dtmf
Configuring Call Preferences Select Enabled from the pull-down list of H.460 Active. Click Confirm to accept the change. To configure H.460 firewall traversal via the remote control: Select Menu->Advanced (default password: 0000) ->H.323. Select Manual Settings from the pull-down list of Gatekeeper Type. Enter the IP address and port number of the H.460 server in Gatekeeper Server and Gatekeeper Port fields.
Page 154: Methods Of Transmitting Dtmf Digit
Administrator’s Guide for Yealink Video Conferencing Systems DTMF Keypad Frequencies: 1209 Hz 1336 Hz 1477 Hz 1633 Hz 697 Hz 770 Hz 852 Hz 941 Hz Methods of Transmitting DTMF Digit Three methods of transmitting DTMF digits: RFC2833 -- DTMF digits are transmitted by RTP Events compliant to RFC2833.
Page 155 Configuring Call Preferences Parameter Description Configuration Method SIP account or SIP IP call separately. Web User Interface INBAND—DTMF digits are  transmitted in the voice band. RFC2833—DTMF digits are  transmitted by RTP Events compliant to RFC2833. SIP INFO—DTMF digits are ...
Page 156 Administrator’s Guide for Yealink Video Conferencing Systems Enter the desired value in the DTMF Payload Type(96~127) field. Click Confirm to accept the change. To configure DTMF type for SIP account via web user interface: Click on Account->SIP Account. Select the desired value from the pull-down list of DTMF Type.
Page 157 Configuring Call Preferences Enter the desired value in the DTMF Payload Type(96~127) field. Click Confirm to accept the change. To configure DTMF type for SIP IP call via web user interface: Click on Account->SIP IP Call. Select the desired value from the pull-down list of DTMF Type. If SIP INFO or RFC2833+ SIP INFO is selected, select the desired value from the pull-down list of DTMF Info Type.
Page 158 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Configures the DTMF type. You can configure it for the StarLeaf Cloud platform or H.323 call separately. INBAND—DTMF digits are  Remote Control transmitted in the voice band. DTMF Type Web User Interface Auto—the system...
Page 159: Codecs
Configuring Call Preferences Select the desired value from the pull-down list of DTMF Type. Click Confirm to accept the change. Codecs CODEC is an abbreviation of COmpress-DECompress, and is capable of coding or decoding a digital data stream or signal by implementing an algorithm. The object of the algorithm is to represent the high-fidelity audio/video signal with a minimum number of bits while retaining quality.
Page 160 Administrator’s Guide for Yealink Video Conferencing Systems Codec Algorithm Bit Rate Sample Rate Reference G.722.1 G.722.1 24 Kbps 16 or 32 Ksps RFC 5577 G722 G.722 64 Kbps 16 Ksps RFC 3551 PCMU G.711 64 Kbps 8 Ksps RFC 3551 PCMA G.711...
Page 161: Video Codecs
Configuring Call Preferences (Optional) If Yealink device has audio problems with certain device, select Enabled from the pull-down list of Special audio codec byte sequence. Click Confirm to accept the change. Video Codecs The video codec that the system uses to establish a call should be supported by the server.
Page 162: Call Protocol
Administrator’s Guide for Yealink Video Conferencing Systems Video codecs parameters on the system are described below: Parameter Description Configuration Method Specifies the enabled video codecs for the system to use. Web User Interface Enable Codecs Note: All support video codecs are enabled on the system by default.
Page 163 Configuring Call Preferences communicate with other VoIP devices. The default call protocol on the system is Auto. The system preferentially uses the H.323 protocol to place calls. If there is no available H.323 account on the system, the system will switch to the SIP protocol for placing calls. You can specify the desired protocol for the system to place calls.
Page 164: Account Polling
Administrator’s Guide for Yealink Video Conferencing Systems Account Polling When you dial account numbers of other system, account polling feature enables your system to use different call types according to this priority: Cloud platform>H.323 account>SIP account. If you cannot call other systems using all your registered accounts, then this call fails.
Page 165 The following example shows the way calls are placed when account polling is enabled or disabled. Scenario: System A is registered with a Yealink Cloud account and a SIP account. On system A, select Auto from the pull-down list before calling. On system A, dial the account numbers of system B.
Page 166: Do Not Disturb
Administrator’s Guide for Yealink Video Conferencing Systems Do Not Disturb Do not Disturb allows the system to reject all incoming calls automatically. You can activate the DND mode for the system when it is idle, and the DND mode will be deactivated after the system places a call.
Page 167: Auto Answer
Configuring Call Preferences Check the DND checkbox. The display device will display , and the LCD screen of the video conferencing phone will display To configure DND during a call via the remote control: Press the More soft key. Check the DND checkbox. Press the Back soft key to exit the More window.
Page 168: Auto Dialout Mute
Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of Auto Answer Mute. Select the desired value from the pull-down list of Auto Answer Multiway. Click Confirm to accept the change. If Enabled is selected, the display device will display...
Page 169: Call Match
Configuring Call Preferences Select the desired value from the pull-down list of Auto Dialout Mute. Click Confirm to accept the change. If Enabled is selected, your video image will display mute icon ( ) when you place a call. Call Match The call match feature allows the system to search for entries automatically from the search source list based on the entered string.
Page 170: History Record
Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of Call Match. Click Confirm to accept the change. To configure call match via the remote control: Select Menu->Call Features. Check the Call Match checkbox.
Page 171: Bandwidth
The system automatically detects the available bandwidth for call connection by default. The VC400/VC120 supports connecting to other devices with different bandwidth. If a device with lower bandwidth joins a call, the video quality will stay the same or will not reduce a lot. You can specify the uplink and downlink bandwidths for the system to achieve the best result.
Page 172 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method If Auto is selected, the system will select the appropriate uplink bandwidth automatically. Specifies the maximum receiving bandwidth for the system. Remote Control Default: Auto Downlink Bandwidth Web User Interface...
Page 173: Sharing Content
Configuring Call Preferences Sharing Content If a PC is connected to the VC400/VC120 Codec, the system will start a presentation automatically. During a call, both local and remote display devices will display the contents. You can also start/stop a presentation manually during a call. If you disconnect the PC, the presentation will stop automatically.
Page 174: Ringback Timeout
Administrator’s Guide for Yealink Video Conferencing Systems Ringback Timeout Ringback timeout defines a specific period of time within which the video conferencing system will cancel the dialing if the call is not answered. The ringback timeout parameter on the system is described below:...
Page 175: Auto Refuse Timeout
Configuring Call Preferences Auto Refuse Timeout Auto refuse timeout defines a specific period of time within which the video conferencing system will stop ringing if the call is not answered. The auto refuse timeout parameters on the system are described below: Parameter Description Configuration Method...
Page 176 Administrator’s Guide for Yealink Video Conferencing Systems account to connect to the far site. The SIP IP call by proxy parameters on the system are described below: Parameter Description Configuration Method Configures the SIP IP call by proxy. Off—when dialing the URI of ...
Page 177: Default Layout
Configuring Call Preferences Default Layout When only one display device is connected to the VC400/VC120 Codec (single screen), you can configure the default layout when a call is established. The parameters of default layout are described below: Parameter Description Configuration Method...
Page 178: Public Mode
Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Default: Enabled To configure default layout of single screen via web user interface: Click on Setting->Call Features. Select the desired value from the pull-down list of Default Layout of Single Screen.
Page 179 Configuring Call Preferences You can use web user interface or third-party control system to configure your video  conferencing system. The parameters of public mode are described below: Parameter Description Configuration Method Enables or disables the public mode. Web User Interface Public Mode Default: Disabled To configure public mode via web user interface:...
Page 180 Administrator’s Guide for Yealink Video Conferencing Systems...
Page 181: Configuring System Settings
Camera Control Protocol  Output Resolution  USB Configuration  Video Recording  ScreenshotTones  General Setting Virtual Remote Control In addition to using the remote control, you can also control the VC400&VC120 video conferencing system via virtual remote control.
Page 182: Configuring Remote Control
Administrator’s Guide for Yealink Video Conferencing Systems To control video conferencing system via the virtual remote control: Click Home->Remote Control when the system is idle or during a call. Click the keys on the virtual remote control to control the video conferencing system.
Page 183: Site Name
Configures the site name of the system. Valid values: String within 64 Remote Control characters Site Name Web User Interface Default: For VC400: Yealink VC400 For VC120: Yealink VC120 To configure the site name via web user interface: Click on Setting->General.
Page 184: Backlight Of The Video Conferencing Phone
Administrator’s Guide for Yealink Video Conferencing Systems dit the site name in the Site Name field. Click Confirm to accept the change. The LCD screen of the display device and video conferencing phone will display the changed site name. To configure the site name via the remote control: Select Menu->Basic.
Page 185: Language
Configuring System Settings Parameter Description Configuration Method Default: Always On To configure the backlight time of the video conferencing phone via web user interface: Click on Setting->General. Select the desired value from the pull-down list of Backlight Time. Click Confirm to accept the change. Language The default language of the LCD screen of the display device and the video conferencing phone is English, and you can change it via the remote control.
Page 186: Date & Time
Administrator’s Guide for Yealink Video Conferencing Systems To specify the language for the web user interface via web user interface: Click Language at the top of the web page. Select the desired language from the pull-down list of Language. To specify the language for the display device and the video conferencing phone via the remote control: Select Menu->Basic.
Page 187 Configuring System Settings time zone configuration. Typically, there is no need to change this setting. DST parameters are described below: Configuration Parameter Description Method Enables or disables the system to update time with the offset time obtained from the DHCP server. Web User Interface DHCP Time Default: Disabled...
Page 188 Administrator’s Guide for Yealink Video Conferencing Systems Configuration Parameter Description Method manually configure the start time, end time and offset. Default: Automatic Configures the DST calculation methods. By Date- specifies the  month, day and hour to be the DST start /end date.
Page 189 Configuring System Settings Configuration Parameter Description Method Note: It only works if the value in Month of the Daylight Saving Time is set to Enabled. End Hour of Day Configures the DST offset time (in minutes). Valid values: -300 to +300. Web User Interface Offset(minutes) Note: It only works if the value...
Page 190 Administrator’s Guide for Yealink Video Conferencing Systems Enter the domain names or IP addresses in the Primary Server and Secondary Server fields respectively. Enter the desired time interval in the Synchronism (15~86400s) field. Select the desired value from the pull-down list of Daylight Saving Time.
Page 191 Configuring System Settings Enter the desired time in the End Hour of Day field. Enter the desired offset time in the Offset (minutes) field. Click Confirm to accept the change. To configure the time and date manually via web user interface: Click on Setting->Date&...
Page 192: Automatic Sleep Time
Administrator’s Guide for Yealink Video Conferencing Systems Click Confirm to accept the change. To configure the time and date format via the remote control: Select Menu->Basic->Date & Time. Configure the desired values. Press the Save soft key to accept the change.
Page 193: Hiding Ip Address
Configuring System Settings Select desired value from the pull-down list of Automatic Sleep Time. Click Confirm to accept the change. To configure the automatic sleep time via the remote control: Select Menu->Basic. Select desired value from the pull-down list of Automatic Sleep Time. Press the Save soft key to accept the change.
Page 194: Hiding Menu Logo
Click Confirm to accept the change. Hiding Menu Logo When the system is idle, a Yealink logo is shown on the display device. You can hide the Yealink logo as needed to achieve the best video effects. Parameter of hiding menu logo on the system is described below:...
Page 195: Hiding Icons In A Call
Configuring System Settings Click Confirm to accept the change. The Yealink logo disappears from the display device. Hiding Icons in a Call During a call, the system will display some information and icons (such as call time, mute icon and recording icon) by default, you can know the call status from these information and icons.
Page 196 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method call. Hide with operation menu -  the system displays camera icon during a call, but the camera icon will hide with operation menu. Enabled- the system displays ...
Page 197 Configuring System Settings Parameter Description Configuration Method Disabled- the system does not  display hold icon during a call. Hide with operation menu -  the system displays hold icon during a call, but the hold icon will hide with operation menu. Enabled- the system displays ...
Page 198 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Enables or disables the system to hide second screen icon ( during a call. Disabled- the system does not  display second screen icon during a call. Hide with operation menu - ...
Page 199: Relog Offtime
Configuring System Settings Relog Offtime The system will log out of the web user interface automatically after being inactive for a period of time (default: 5 minutes). You need to re-enter the user name and password to login. You can only configure the relog offtime via web user interface.
Page 200: Meeting Password
Press the Save soft key to accept the change. Meeting Password VC400 supports meeting password feature. If an 8-way MCU is imported to your VC120, yourVC120 will support meeting password feature. Meeting password is used to manage the incoming calls. If you enable this feature, only the people who know the meeting password can dial your system.
Page 201 Configuring System Settings The meeting password parameters are described below: Parameter Description Configuration Method Enable or disable the meeting Remote Control password feature. Meeting Password Web User Interface Default: Off Configures the meeting password. Remote Control Passward Default: blank Web User Interface To configure the meeting password via web user interface: Click on Setting->General.
Page 202: Meeting Whitelist
Administrator’s Guide for Yealink Video Conferencing Systems Meeting Whitelist VC400 supports meeting whitelist feature. If an 8-way MCU is imported to your VC120, your VC120 will support meeting whitelist feature. You can add the IP address, account or domain name of the remote system to the meeting whitelist.
Page 203: Meeting Blacklist
VC400 /VC120 will refuse incoming calls from the blacklist automatically. If the user is in both meeting whitelist and meeting blacklist, the blacklist has higher priority. VC400 /VC120 will still refuse incoming calls from this user. VC400 /VC120 will not remind incoming calls and save call history from blacklist.
Page 204: Keyboard Input Method
Administrator’s Guide for Yealink Video Conferencing Systems Click Add. Repeat step 2-3 to add more numbers to the meeting blacklist. To delete the blacklist numbers via web user interface: Click on Directory->Meeting Blacklist. Click Delete beside the numbers that you want to delete.
Page 205: Audio Setting
Configuring System Settings To adjust the display order of the enabled input methods, select the desired list, and click Click Confirm to accept the change. To change keyboard input method via the remote control: Press (Keyboard soft key) or (Keyboard soft key). The display device appears the on-screen keyboard.
Page 206 Administrator’s Guide for Yealink Video Conferencing Systems removed from the Codec, the system will select the next highest priority device. You can also specify the desired audio output device via the remote control or the web user interface. The audio output device parameter is described below:...
Page 207: Audio Input Device
Auto (select the audio input device with highest priority)  VCS Phone (video conferencing phone)  Wired Micpod (VCM30)  Line Input (microphone connected to the Line In port on the VC400/VC120 Codec)  Line In + VCS Phone  Line In + Wired Micpod ...
Page 208 By default, the VC400/VC120 automatically selects the audio input devices with the highest priority. If you select “Line In + device” option, the VC400/VC120 will use microphone connected to the Line In port and the device to pick up audio at the same time.
Page 209 Configuring System Settings Parameter Description Configuration Method to the Line In port on the Codec and VCM30 video conferencing microphone array. Default: Auto. If Line Input is selected as the  audio input device, the near-end audio output device will not play sound from the Line Input device.
Page 210: Adjusting Mtu Of Video Packets
Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of Audio Input. Click Confirm to accept the change. To configure the audio input device via the remote control: Select Menu->Video & Audio->Audio Settings. Select the desired value from the pull-down list of Audio Input.
Page 211 Configuring System Settings Parameter Description Configuration Method 1500 Default: 1500 Note: If you change this parameter, the system will reboot to make the change take effect. To configure MTU via web user interface: Click on Network->Advanced. In the MTU block, enter the desired value in the Video MTU field. Click Confirm to accept the change.
Page 212: Dual-Stream Protocol
The Yealink video conferencing system supports the standard H.239 protocol and BFCP (Binary Floor Control Protocol). H.239 protocol is used when sharing content with the far site in H.323 calls.
Page 213 Configuring System Settings Select the desired value from the pull-down list of H.239. Click Confirm to accept the change. To configure H.239 dual-stream protocol for H.323 call via web user interface: Click on Account->H.323. Select the desired value from the pull-down list of H.239.
Page 214 Administrator’s Guide for Yealink Video Conferencing Systems Click Confirm to accept the change. To configure BFCP dual-stream protocol for Zoom/Pexip/BlueJeans/Mind/Custom platform via web user interface: Click on Account->VC Platform. Select Zoom/Pexip/BlueJeans/Mind/Custom from the pull-down list of Platform Type. Select the desired value from the pull-down list of BFCP.
Page 215 Configuring System Settings Select the desired value from the pull-down list of BFCP. Click Confirm to accept the change. To configure BFCP dual-stream protocol for SIP IP call via web user interface: Click on Account->SIP IP Call. Select the desired value from the pull-down list of BFCP. Click Confirm to accept the change.
Page 216: Mix Sending
Content sharing allows users to share content with other conference participants during a call. When a PC is connected to the PC port on the VC400/VC120 Codec, the display device can display both the camera video and the shared content. The content sharing feature is very useful in the conference scenario in which content sharing is needed (e.g., a slide or a flash).
Page 217: Configuring Camera Settings
You can adjust the camera flicker frequency according to the power source the light is powered by. Configures the white balance mode of the VCC18 camera. Auto—Yealink recommends  Remote Control White Balance this setting for most situations. Mode...
Page 218 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method One push—Use the predefined  color temperature settings to provide acceptable color reproduction. ATW—Automatically adjust the  white balance based on the video image shoot by the camera. Manual—Manually set red and ...
Page 219 Configuring System Settings Parameter Description Configuration Method only when the white balance mode is configured to Manual. Configures the blue gain of the camera. Valid Values: 0-100 Remote Control Blue Gain Default: 62 Web User Interface Note: You can set this parameter only when the white balance mode is configured to Manual.
Page 220 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Configures the contrast of the camera. Valid Values: 0-100 Remote Control Default: Contrast Web User Interface For VCC18 camera, the default value is 45. For VCC20 camera, the default value is 7.
Page 221 Configuring System Settings Parameter Description Configuration Method will be reversed when pressing the left and right navigation keys on the remote control. In this case, you can set the camera pan direction to Reversed. Enables or disables the multiple preset feature. Default: Off Web User Interface Multiple Preset...
Page 222: Multiple Preset
10 preset camera positions, you can enable the multiple preset feature. For VC400 video conferencing system, you can store up to 64 preset camera positions for VCC18 camera. For VC120 video conferencing system, if you connect two VCC20 cameras to the...
Page 223 Configuring System Settings VC120 Codec using the VC Dual-camera Box VCB20, you can store up to 64 preset camera positions for camera 1 and 63 preset camera positions for camera 2. The following example illustrates a scenario where multiple preset feature is used: There are multiple speakers in a large meeting room.
Page 224 Administrator’s Guide for Yealink Video Conferencing Systems A Preset menu appears. Storing a Camera Preset To store a camera preset position via web user interface: Click on Setting->Preset. Adjust the angle and focus of the camera. Click to store a camera preset to the specified number.
Page 225 Configuring System Settings Click Use to move local camera to the corresponding preset position. Replacing the Stored Preset You can replace the stored camera preset position with current camera preset position. To replace the stored camera preset position via web user interface: Click on Setting->Preset.
Page 226 Administrator’s Guide for Yealink Video Conferencing Systems Click , and then select Delete Preset. The web user interface prompts “Do you want to delete the preset?”. Click Confirm to accept the change. Clearing the Stored Preset To clear all camera preset positions via web user interface: Click on Setting->Camera.
Page 227: Far-End Camera Control
Configuring System Settings To clear all camera preset positions via the remote control: Select Menu->Video & Audio->Camera General Settings. Select Clear Preset Position. Press OK to accept the change. Far-end Camera Control Local video is displayed on the display device of the far site during a call. For the best view, you can enable the Far Control Near Camera feature to allow the far site to control the focus and angle of the local camera.
Page 228: Camera Control Protocol
Press the Save soft key to accept the change. Camera Control Protocol VC400/VC120 video conferencing systems support camera control protocols: FECC (Far End Camera Control). You can enable the FECC protocol for SIP call or H.323 call. If far site wants to control the local camera, both the far site and local site should enable the camera control protocol simultaneously.
Page 229 SIP IP call, the default value is Enabled. For SIP account, the default value is Disabled. Note: You cannot configure it for the Yealink/StarLeaf Cloud platform. To configure FECC(H.323) camera control protocol for StarLeaf Cloud platform via web user interface: Click on Account->VC Platform.
Page 230 Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of FECC(H.323). Click Confirm to accept the change. To configure FECC(H.323) camera control protocol for H.323 calls via web user interface: Click on Account->H.323. Select the desired value from the pull-down list of FECC(H.323).
Page 231 Configuring System Settings Click Confirm to accept the change. To configure FECC(SIP) camera control protocol for Zoom/Pexip/BlueJeans/Mind/Custom platform via web user interface: Click on Account->VC Platform. Select Zoom/Pexip/BlueJeans/Mind/Custom from the pull-down list of Platform Type. Select the desired value from the pull-down list of FECC(SIP). Click Confirm to accept the change.
Page 232 Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of FECC(SIP). Click Confirm to accept the change. To configure FECC(SIP) camera control protocol for SIP IP call via web user interface: Click on Account->SIP IP Call.
Page 233: Output Resolution
Output Resolution VC400/VC120 supports output resolution adjustment. You can adjust output resolution of primary/secondary display device respectively. Make sure the display device has connected to the VC400/VC120 Codec before configuration. The output resolution parameters on the systems are described below. Parameter...
Page 234: Usb Configuration
Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of Display2. Click Confirm to accept the change. USB Configuration If you have high requirement for data security, you can disable the USB feature. If you disable the USB feature, you cannot view the videos and screenshots stored in the USB flash driver via the remote control, and cannot record video or capture screenshots too.
Page 235: Video Recording
Before recording video, you need to insert a USB flash drive to the USB port on the VC400/VC120 Codec to store recorded video. Make sure the USB feature is enabled. The video recording parameters on the system are described below.
Page 236 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Note: The auto recording feature is available only when the recording feature is enabled. To configure video recording via web user interface: Click on Setting->Video & Audio. Select the desired value from the pull-down list of Recording.
Page 237: Screenshot
You can capture the screenshot from the camera via the remote control or web user interface. Before capturing the screenshot, you need to insert a USB flash drive to the USB port on the VC400/VC120 Codec to store screenshots. Make sure the USB feature is enabled. The screenshot parameter on the system is described below.
Page 238: Tones
Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of Screenshot. Click Confirm to accept the change. To capture screenshots via web user interface: Click Home->Screenshot when the system is idle or during a call.
Page 239 Configuring System Settings Austria  Brazil  Belgium  China  Chile  Czech  Czech ETSI  Denmark  Finland  France  Germany  Great Britain  Greece  Hungary  Lithuania  India  Italy  Japan ...
Page 240 Administrator’s Guide for Yealink Video Conferencing Systems Condition Description Auto Answer When answering a call automatically Tones parameters on the system are described below: Parameter Description Configuration Method Customizes tones or selects the desired country tone set. Web User Interface...
Page 241 Configuring System Settings Parameter Description Configuration Method customize the tone, refer to the parameter “Ring Back”. Default: Blank Note: It only works if the parameter “Select Country” is set to Custom. Customizes the call waiting tone for the system. For more information on how to customize the tone, refer to the Web User Interface Call Waiting...
Page 242 Administrator’s Guide for Yealink Video Conferencing Systems...
Page 243: System Management
Directory VC400/VC120 system can display: local contacts, Yealink Cloud contacts and YMS contacts. Local contacts: The VC400 system can store up to 500 local contacts and 100 conference  contacts. The VC120 system can store up to 500 local contacts, and does not support conference contacts.
Page 244 Administrator’s Guide for Yealink Video Conferencing Systems to the YMS contacts and permanent VMR. For more information on Yealink Meeting Server, Yealink Meeting Server Administrator Guide refer to Note Starleaf/Zoom/Pexip/BlueJeans/Mind platform does not provide Cloud contacts for video conferencing system.
Page 245 System Management Click New Contact, and select Conf. Enter the desired name in the Conference Name field. If multiple numbers are stored for the selected contacts, the system will select number 1 by default. Click Confirm to accept the change. To edit contacts from the local directory via web user interface: Click on Directory->Local Directory.
Page 246 Administrator’s Guide for Yealink Video Conferencing Systems Edit the contact information. Click Confirm to accept the change. To place calls to contacts from the local directory via web user interface: Click on Directory->Local Directory. Hover your cursor over the desired contact.
Page 247 System Management Select Import. from the pull-down list of Import/Export. Click Browse to locate a local contact list file (file format must be *.csv) from your local system. Click Confirm. The web user interface is shown below: (Optional.) Check the The first line as the title checkbox. It will prevent importing the title of the local contact information which is located in the first line of the CSV file.
Page 248: Ldap
LDAP LDAP (Lightweight Directory Access Protocol) is an application protocol for accessing and maintaining information services for the distributed directory over an IP network. Yealink VCS systems are configurable to interface with a enterprise directory server that supports LDAP version 2 or 3. The following LDAP servers are supported: Microsoft Active Directory ...
Page 249 System Management deleted by users. When an LDAP server is configured properly, the system can look up entries from the LDAP server in a wide variety of ways. The LDAP server indexes all the data in its entries, and "filters" may be used to select the desired entry or group, and retrieve the desired information.
Page 250 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Example: (|(cn=%)(sn=%)) Configures the number attribute for LDAP searching. LDAP Number Web User Interface Example: Filter (|(telephoneNumber=%)(mobile=%) Configures the connection mode between the LDAP server and video conferencing system.
Page 251 LDAP server. Configures the root path of the LDAP search base. Web User Interface LDAP Base Example: cn=manager,dc=yealink,dc=cn Configures the maximum number of search results to be returned by the Web User Interface Max Hit(1~32000) LDAP server.
Page 252 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method Note: If the match is successful, the system will display the caller name when receives an incoming call. Enables or disables the system to match outgoing call numbers with LDAP contacts.
Page 253: Call History
Click Confirm to accept the change. Call History The VC400/VC120 video conferencing system maintains call history lists of All Calls, Missed Calls, Placed Calls and Received Calls. The system supports up to 100 history entries, including local history entries and Cloud history entries.
Page 254 Administrator’s Guide for Yealink Video Conferencing Systems Click in the pop-up detail box to place a video or voice call. The web user interface prompts “Connecting, please wait!” and jumps automatically to the Home screen. To delete an entry from the call history list via web user interface: Click on Directory->History.
Page 255: Search Source List In Dialing
The VC400/VC120 has two display ports. When connecting only one display device to the VC400/VC120 Codec, Display1 port is the only available port. To make it easier for users to view video images, users can connect two display devices to Display1 and Display2 ports respectively.
Page 256: Two-Way Video Calls
Administrator’s Guide for Yealink Video Conferencing Systems Two-way Video Calls In the primary display device, the remote video image is shown in full size. In the secondary display device, the local video image is shown in full size. Far end...
Page 257: Multi-Way Video Call With Presentation
License Device Type License If the VC400/VC120 is a demo machine, namely it is used by agents to demonstrate system functions to the customers. The LCD screen of the system will prompt “DEMO ONLY, NOT FOR RESELL”. You can change the VC400/VC120 from a demo machine to be a normal machine by importing a device type license.
Page 258: 8-Way Mcu License
Without 8-way MCU, the VC400 video conferencing system supports 4-way video calls and an additional voice call (an original caller and four other sites). You can import an 8-way MCU to extend the VC400 to support 8-way video calls and an additional voice call (an original caller and eight other sites).
Page 259: Vcs Integrated With Control Systems
If the 8 way MCU displays Eternal, it means you have imported a permanent version of the 8-way MCU. So the VC400/VC120 supports up to 8-way video calls and an additional voice call (an original caller and eight other sites) permanently.
Page 260: Using The Api With A Lan Connection
API commands can be sent to video conferencing system through TCP protocol. The control system needs to know the IP address and port of the Yealink video conferencing system. For security, you can configure an authentication password for TCP connection.
Page 261: Using The Api With A Serial Connection
You can use the API with a serial connection to control Yealink video conferencing system. The USB port on the Yealink video conferencing system can be connected to the serial port on the control system through a USB to RS-232 cable.
Page 262 Click Confirm to accept the change. When you successfully deploy environment and configure the third-party control system, the Yealink video conferencing systems and the control devices, you can remotely manage certain features of your video conferencing system via the control device.
Page 263: Configuring Security Features
Configuring Security Features Configuring Security Features This chapter provides information for making configuration changes for the following security-related features: User Mode  Administrator Password  Web Server Type  Transport Layer Security  Secure Real-Time Transport Protocol  H.235  Defending against Attacks ...
Page 264: Administrator Password
Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method when the user mode is enabled. The system supports ASCII characters 32-126(0x20-0x7E) in passwords. You can leave the password blank. To configure user mode via web user interface: Click on Security->Security.
Page 265: Web Server Type
Configuring Security Features Parameter Description Configuration Method Configures a new administrator password. Remote Control New Password Note: You can leave the password Web User Interface blank. Enters the new configured administrator password. Remote Control Confirm Password Note: The entered password must Web User Interface be the same as the one configured by the parameter “New Password”.
Page 266 Administrator’s Guide for Yealink Video Conferencing Systems Web server type parameters on the system are described below: Parameter Description Configuration Method Enables or disables the user to access the web user interface of the Remote Control HTTP system using the HTTP protocol.
Page 267: Transport Layer Security
Configuring Security Features Enter the desired HTTPS port in the HTTPS Port field. Click Confirm to accept the change. To configure web server type via the remote control: Select Menu->Advanced (default password: 0000) ->Advanced Network. Select the desired value from the pull-down list of Web Server Type. Press the Save soft key to accept the change.
Page 268 Administrator’s Guide for Yealink Video Conferencing Systems The system supports TLS 1.0. A cipher suite is a named combination of authentication, encryption, and message authentication code (MAC) algorithms used to negotiate the security settings for a network connection using the TLS/SSL network protocol. The system supports the...
Page 269 (based on the MAC address) and issued by the Yealink Certificate Authority (CA). A generic server certificate: It is installed by default and is issued by the Yealink Certificate Authority (CA). Only if no unique certificate exists, the system may send a...
Page 270 Administrator’s Guide for Yealink Video Conferencing Systems generic certificate for authentication. The system can authenticate the server certificate based on the trusted certificates list. The trusted certificates list and the server certificates list contain the default and custom certificates. You can specify the type of certificates the system accepts: default certificates, custom certificates, or all certificates.
Page 271 Configuring Security Features Parameter Description Configuration Method If you change this parameter, the system will reboot to make the change take effect. Enables or disables the system to mandatorily validate the CommonName or SubjectAltName of the certificate sent by Common the server.
Page 272 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method uploaded to the system. The device certificate you want to upload must be in *.pem or *.cer format. To configure the trusted certificate feature via web user interface: Click on Security->Trusted Certs.
Page 273 Configuring Security Features Select TLS from the pull-down list of the Transport. Click Confirm to accept the change. To configure TLS for the SIP account via web user interface: Click on Account->SIP Account. Select TLS from the pull-down list of the Transport. Click Confirm to accept the change.
Page 274 Administrator’s Guide for Yealink Video Conferencing Systems To upload a CA certificate via web user interface: Click on Security->Trusted Certs. Click Browse to locate the certificate (*.pem,*.crt, *.cer or *.der) from your local system. Click Upload to upload the certificate.
Page 275: Secure Real-Time Transport Protocol
Configuring Security Features To upload a device certificate via web user interface: Click on Security->Server Certs. Click Browse to locate the certificate (*.pem or *.cer) from your local system. Click Upload to upload the certificate. Secure Real-Time Transport Protocol During a confidential call, you can configure Secure Real-Time Transport Protocol (SRTP) to encrypt RTP streams to avoid interception and eavesdropping.
Page 276 Administrator’s Guide for Yealink Video Conferencing Systems a=ptime:20 a=sendrecv The callee receives the INVITE message with the RTP encryption algorithm, and then answers the call by responding with a 200 OK message which carries the negotiated RTP encryption algorithm. The following is an example of the RTP encryption algorithm carried in the SDP of the 200 OK...
Page 277 Configuring Security Features When SRTP is enabled on both systems, RTP streams will be encrypted, and the lock icon appears on the display device of each system after successful negotiation. Note Cloud platform If SRTP is enabled for the or SIP account, you should also configure the transport type to TLS.
Page 278 Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of SRTP. Click Confirm to accept the change. To configure SRTP for SIP IP call via web user interface: Click on Account->SIP IP Call. Select the desired value from the pull-down list of SRTP.
Page 279: H.235
Configuring Security Features H.235 Yealink video conferencing systems support H.235 128-bit AES algorithm using the Diffie-Hellman key exchange protocol in H.323 calls. To use H.235 feature for H.323 calls, the participants in the call must enable the H.235 feature simultaneously. When a site places a call on the H.235 feature enabled system, the system negotiates the encryption algorithm with the...
Page 280 Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of H.235. Click Confirm to accept the change. To configure H.235 for H.323 via web user interface: Click on Account->H.323. Select the desired value from the pull-down list of H.235.
Page 281: Defending Against Attacks
Configuring Security Features Defending against Attacks VCS sometimes receives calls from unknown caller, and the calls may be unable to answer. To ensure the communications security of the VCS, you can configure abnormal call answering feature for handling abnormal SIP incoming calls. For incoming H.323 calls, you can configure Safe Mode Call feature.
Page 282: Configuring Safe Mode Call
Administrator’s Guide for Yealink Video Conferencing Systems Select the desired value from the pull-down list of Abnormal Call Answering. Click Confirm to accept the change. Configuring Safe Mode Call Safe Mode Call feature is used to verify whether the incoming H.323 call is coming from a video conferencing system.
Page 283 Configuring Security Features Select the desired value from the pull-down list of Safe Mode Call. Click Confirm to accept the change.
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Page 285: System Maintenance
You can upgrade the system firmware via web user interface. The firmware name of the VC400 video conferencing system is: 30.x.x.x.rom (x is the actual firmware version), the firmware name of the VC120 video conferencing system is: 40.x.x.x.rom (x is the actual firmware version).
Page 286: Upgrading Vcc20 Camera Firmware
2, will the Camera 2 be upgraded. Importing/Exporting Configuration We may need you to provide the system configurations for the Yealink field application engineers to help analyze problems. You can import configurations to your system to configure your system quickly. The file format of configuration file must be *.bin.
Page 287: Resetting To Factory
It is not possible to undo a factory reset. But you can export the configuration first, and then you can re-import the configuration to recovery the system after the reset. You can reset the system via the reset key on the VC400/VC120 Codec, remote control or web user interface.
Page 288 The system reboots automatically. The system will reset to factory sucessfully after startup. To reset the system via the rest key on the VC400/VC120 Codec: Using tiny objects (for example, the paper clip) to press and hold the reset button for 15 seconds until the screen turns black.
Page 289: Snmp
The variables accessible via SNMP are organized in hierarchies, which are described by Management Information Bases (MIBs). Yealink systems support SNMPv1 and SNMPv2. They act as SNMP clients, receiving requests from the SNMP server. The SNMP server may send requests from any available source port to the configured port on the client, while the client responds to the source port on the SNMP server.
Page 290 Administrator’s Guide for Yealink Video Conferencing Systems Description The target version to which the current version is updated automatically. Format: 1.3.6.1.2.1.37459.2.1.1 YEALINK-MIB MacVersion[*]ComVersion[*] For example, MacVersion[0.0.0.1]ComVersion[0.0.0.1] The command of the system reboot. Format: 1.3.6.1.2.1.37459.2.1.1 YEALINK-MIB snmpset -v 2c XXXX public 37459.2.1.11.0 s reboot XXXX refers to the IP address of the system.
Page 291 System Maintenance Parameter Description Configuration Method change take effect. To configure SNMP via web user interface: Click on Network->Advanced. In the SNMP block, select Enabled from the pull-down list of Active. Enter the SNMP port in the Port field. Enter the IP address or domain name of the SNMP server in the Trusted Address field. Multiple IP addresses or domain names should be separated by spaces.
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Page 293: Troubleshooting
 Viewing Log Files The log files are Yealink specific debug files which may be requested by the Yealink support organization if you need technical support. The current log files are time stamped event log files. You can export the log files to a syslog server or the local system. The administrator can specify the location where the log will be exported to and the severity level of the log.
Page 294 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method to the specified server. Default: Local Specify the server address where the log will be exported. Web User Interface Server Name Note: It only works if the parameter “Export System Log” is set to Server.
Page 295 Troubleshooting Mark the Local radio box In the Export System Log field. Click Export to open the file download window, and then save the file to your local system. The following figure shows a portion of a log file: To export a log file to a syslog server via web user interface: Click on Setting->Configuration.
Page 296: Capturing Packets
Administrator’s Guide for Yealink Video Conferencing Systems Enter the IP address or domain name of the syslog server in the Server Name field. A dialog box pops up to prompt that settings will take effect after a reboot. Click Confirm to reboot the system immediately.
Page 297 Troubleshooting Parameter Description Configuration Method filter string. SIP or H245 or H225—Capture  SIP, H245 and H225 packets. It depends on the supportive protocol of the system. RTP—Capture RTP packets.  Default: Custom Customizes the packet filter string. Syntax: Protocol+Direction+Host(s)+ Value +Logical Operations+Other Expression Protocol: Values: ether, fddi, ip, arp, rarp, decnet,...
Page 298 Administrator’s Guide for Yealink Video Conferencing Systems Parameter Description Configuration Method equivalent to "(not tcp port 3128) and tcp port 23". "not tcp port 3128 and tcp port 23" is NOT equivalent to "not (tcp port 3128 and tcp port 23)".
Page 299: Getting Information From Status Indicators
To capture packets via the remote control: Before capturing packets, you need to insert a USB flash drive to the USB port on the VC400/VC120 Codec to store packets. Make sure the USB feature is enabled. Long press when the system is idle or during a call.
Page 300: Analyzing Configuration Files
Administrator’s Guide for Yealink Video Conferencing Systems Analyzing Configuration Files Wrong configurations may have an impact on your system use. You can export configuration file to check the current configuration of the system and troubleshoot if necessary. For more information on how to export system configuration, refer to Importing/Exporting Configuration on page 270.
Page 301 You can also enter any IP address (for example, the IP address of the remote system) in the Trace Route field. If the test is successful, the VC400/VC120 system lists the hops between the system and the IP address you entered. You can check whether congestion happens via the time cost between hops.
Page 302: Troubleshooting Solutions
Yealink FAE. General Issues Why is the display device black? Check whether the display device is connected properly to the VC400/VC120 Codec.  Check whether the system is in sleep mode. Press any key on the video conferencing ...
Page 303 Troubleshooting Why doesn’t the display device display time and date correctly? If you have configured the system to obtain the time and date from the NTP server  automatically, ensure that SNTP server and time zone are configured correctly in the system and whether the connection between the system and NTP server is working properly.
Page 304: Camera Issues
Administrator’s Guide for Yealink Video Conferencing Systems Why doesn’t the status bar of the display device display IP address? Check whether the network is available.  Check whether the LAN property is configured correctly. For more information on LAN ...
Page 305: Video & Audio Issues
For more information, refer to Audio Codecs on page 143. For best results, ensure that the caller is using a Yealink video conferencing system. Audio  quality from your video conferencing system will vary when calling a non-Yealink system.
Page 306 Check the screen layout to see whether the remote video image is shown in full size.  Why can’t I view the menu? Check whether the Display1 port of VC400/VC120 Codec is connected to the HDMI port on  the display device.
Page 307: Why Does The Far-Site Display Black Screen When Local Starts A Presentation
Troubleshooting Why does the far-site display black screen when local starts a presentation? This situation may due to the difference between Signaling Server address and the Media Server address. The actual address is different from the negotiated address, so that start a presentation in this situation will result in the failure of sending packets to the correct address.
Page 308: System Maintenance
Administrator’s Guide for Yealink Video Conferencing Systems Select the desired level from the pull-down list of Network Address Adapter. Click Confirm to accept the change. System Maintenance How to prevent monitor burn-in? Refer to your monitor’s documentation for specific recommendations and instructions. The following guidelines help prevent image burn-in: Ensure that static images are not displayed for long periods.
Page 309 Configure some features need to take effect after a reboot  You can reboot the system in the following ways: Long press the power button on the VC400/VC120 Codec.  Select Menu->Advanced (default password: 0000) ->Reboot & Reset->Reboot, and ...
Page 310 Administrator’s Guide for Yealink Video Conferencing Systems...
Page 311: Appendix
Appendix Appendix Appendix A: Time Zones Time Zone Time Zone Name Samoa −11:00 United States-Hawaii-Aleutian −10:00 United States-Alaska-Aleutian −10:00 French Polynesia −09:30 United States-Alaska Time −09:00 Canada(Vancouver, Whitehorse) −08:00 Mexico(Tijuana, Mexicali) −08:00 United States-Pacific Time −08:00 Canada(Edmonton, Calgary) −07:00 Mexico(Mazatlan, Chihuahua) −07:00 United States-Mountain Time −07:00...
Page 312 Administrator’s Guide for Yealink Video Conferencing Systems Time Zone Time Zone Name Greenland Denmark-Faroe Islands(Torshavn) Ireland(Dublin) Portugal(Lisboa, Porto, Funchal) Spain-Canary Islands(Las Palmas) United Kingdom(London) Morocco +01:00 Albania(Tirane) +01:00 Austria(Vienna) +01:00 Belgium(Brussels) +01:00 Caicos +01:00 Chad +01:00 Spain(Madrid) +01:00 Croatia(Zagreb) +01:00...
Page 313 Appendix Time Zone Time Zone Name +03:00 Iraq(Baghdad) +03:00 Russia(Moscow) +03:30 Iran(Teheran) +04:00 Armenia(Yerevan) +04:00 Azerbaijan(Baku) +04:00 Georgia(Tbilisi) +04:00 Kazakhstan(Aktau) +04:00 Russia(Samara) +04:30 Afghanistan(Kabul) +05:00 Kazakhstan(Aqtobe) +05:00 Kyrgyzstan(Bishkek) +05:00 Pakistan(Islamabad) +05:00 Russia(Chelyabinsk) +05:30 India(Calcutta) +05:45 Nepal(Katmandu) +06:00 Kazakhstan(Astana, Almaty) +06:00 Russia(Novosibirsk, Omsk) +06:30 Myanmar(Naypyitaw)
Page 314: Appendix B: Trusted Certificates
Tonga(Nukualofa) +13:30 Chatham Islands +14:00 Kiribati Appendix B: Trusted Certificates Yealink video conferencing system trusts the following CAs by default: Symantec Class 3 Secure Server CA  Class 1 Public Primary Certification Authority  Deutsche Telekom AG Root CA 2 ...
Page 315  Note Yealink endeavors to maintain a built-in list of most common used CA Certificates. Due to memory constraints, we cannot ensure a complete set of certificates. If you are using a certificate from a commercial Certificate Authority not in the list above, you can send a request to your local distributor.
Page 316 Administrator’s Guide for Yealink Video Conferencing Systems...
Page 317: Index
Index Index Configuring Network Settings Manually Numeric Configuring Network Speed and Duplex Mode 802.1x Authentication Configuring Packets Configuring Safe Mode Call Configuring SIP Settings Abnormal Call Answering Configuring System Settings About This Guide Configuring the System for Use with a Firewall or Adjusting MTU of Video Packets Administrator Password Configuring the Third-party Virtual Meeting Room...
Page 318 Administrator’s Guide for Yealink Video Conferencing Systems H.323 Tunneling Hiding IP Address Network Address Translation Hiding Icons in a Call Hiding Menu Logo History Record Output Resolution Icons on Display Device Icons on the Video Conferencing Phone Packaging Contents Importing/Exporting Configuration...
Page 319 User Interfaces User Mode Using the API with a LAN Connection Using the API with a Serial Connection Using Diagnostic Methods VC400/VC120 Codec VCC18/VCC20 HD Camera VCM30 Video Conferencing Microphone Array VCR10 Remote Control VCS Integrated with Control Systems Video & Audio Issues...

This manual is also suitable for:

Vc120

Yealink VC400 Administrator's Manual

About this Guide

Table of Contents

System Overview

Getting Started

Configuring Network

Configuring Call Preferences

Configuring System Settings

System Management

Configuring Security Features

System Maintenance

Troubleshooting

Appendix

Appendix A: Time Zones

Appendix B: Trusted Certificates

Index

Quick Links

Troubleshooting

Need help?

Questions and answers

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Summary of Contents for Yealink VC400