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Grandstream Networks GRP260X Series Administration Manual

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Grandstream Networks, Inc.
GRP260X SERIES – ADMINISTRATION GUIDE

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Summary of Contents for Grandstream Networks GRP260X Series

  • Page 1 Grandstream Networks, Inc. GRP260X SERIES – ADMINISTRATION GUIDE...

  • Page 2: Product Overview

    GRP2603/GRP2604 offers an easy-to-use and easy-to-deploy voice endpoint. The GRP260X series delivers superior HD audio quality, rich and leading-edge telephony features, protection for privacy, and broad interoperability with most 3rd party SIP devices and leading SIP/NGN/IMS platforms. GRP260X series is the perfect choice for enterprise users looking for a high-quality, feature-rich multi-line executive IP phone with advanced functionalities and performance.

  • Page 3: Technical Specifications

    Technical Specifications The following table resumes all the technical specifications including the protocols/standards supported, voice codecs, telephony features, languages, and upgrade/provisioning settings for the GRP260X series. SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS(A record, SRV, NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, SNMP, 802.1x, TLS,...
  • Page 4 Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES Security encrypted configuration file, SRTP, TLS, 802.1x media access control, secure boot. English, Chinese, Korean, Japanese, German, Italian, French, Spanish, Portuguese, Russian, Multi-language Croatian, Greek, and more Firmware upgrade via FTP/TFTP / HTTP / HTTPS, mass provisioning using GDMS/TR-069 or AES...
  • Page 5 HD audio Yes, HD handset and speakerphone with support for wideband audio Base Stand Yes, 1 angle positions available Wall Mountable Yes, (*wall mount sold separately) Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES Security encrypted configuration file, SRTP, TLS, 802.1x media access control, secure boot English, Chinese, Korean, Japanese, German, Italian, French, Spanish, Portuguese, Russian,...
  • Page 6 flexible dial plan, hot-desking, personalized music ringtones and music on hold, server redundancy and fail-over HD audio Yes, HD handset and speakerphone with support for wideband audio Base Stand Yes, 2 angle positions available Wall Mountable Yes, (*wall mount sold separately) Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES Security...

  • Page 7: Getting Started

    Telephony Features Hold, transfer, forward, 4-way conference, call park, call pickup, shared-call- appearance(SCA)/bridged-line-appearance(BLA), downloadable phonebook (XML, LDAP, up to 2000 items), call waiting, call log (up to 800 records), off-hook auto dial, auto answer, click-to- dial, flexible dial plan, hot-desking, personalized music ringtones and music on hold, server redundancy and fail-over HD audio Yes, HD handset and speakerphone with support for wideband audio...

  • Page 8: Using The Phone Stand

    ● 1 x Power Adapter (Except for GRP260xP). ● 1 x Phone cord. ● 1 x Quick Installation Guide. Figure 1: GRP260X Package Content Note Check the package before installation. If you find anything missing, contact your system administrator. GRP260X Phone Setup The GRP260X phones can be installed on the desktop using the phone stand or attached to the wall using the slots for wall mounting.
  • Page 9 Figure 3: Tab on the Handset Cradle Connecting the GRP260X To set up the GRP260X, follow the steps below: 1. Connect the handset and main phone case with the phone cord. 2. Connect the LAN port of the phone to the RJ-45 socket of a hub/switch or a router (LAN side of the router) using the Ethernet cable.

  • Page 10: Configuration Via Keypad

    Figure 4: GRP260X Back Side View Configuration via Keypad To configure the LCD menu using the phone’s keypad, follow the instructions below: Enter MENU options. When the phone is in idle, press the round MENU button or Menu Softkey to enter the configuration menu.
  • Page 11 • Headset Type Choose the headset type of the headset connect to the phone. Users could choose Normal, Plantronics EHS, Jabra EHS, Sennheiser EHS. • Advanced settings ��Upgrade Check for upgrade by contacting the firmware upgrade server. • Syslog Configures Syslog level, Transport protocol and Syslog Server’s address. • Security Enables disables Web and SSH access.

  • Page 12: Configuration Via Web Browser

    Figure 5: GRP260x LCD settings Configuration via Web Browser The GRP260X embedded Web server responds to HTTP/HTTPS GET/POST requests. Embedded HTML pages allow a user to configure the IP phone through a Web browser such as Google Chrome, Mozilla Firefox, and Microsoft’s IE. To access the Web GUI: 1.

  • Page 13: Saving Configuration Changes

    User Level User Password Web Pages Allowed Only Status and Basic End User Level user Settings Administrator Random password available on the admin Browse all pages Level sticker at the back of the unit. When changing any settings, always SUBMIT them by pressing the “Save” or “Save and Apply” button at the bottom of the page.
  • Page 14 SIP Registration Displays SIP registration status for the SIP account. Status �� Network Status Global unique ID of device, in HEX format. The MAC address will be used for provisioning and can MAC Address be found on the label coming with original box and on the label located on the back of the device. IP Setting The configured address type: DHCP, Static IP or PPPoE.

  • Page 15: Account Page Definitions

    System Information Download system information User Space Shows the percentage of the user space used and the status of the Database Shows the status of the core dump and the core dump files generated if any. It also gives the ability Core Dump to generate GUI/Phone core dump files manually.
  • Page 16 Network Settings This parameter controls how the Search Appliance looks up IP addresses for hostnames. If “Use Configured IP” is selected, please fill in Primary IP, Backup IP 1 and Backup IP 2. DNS Mode ● A Record ● SRV ●...
  • Page 17 phone will try to use public IP addresses and port number in all the SIP&SDP messages. The phone will send empty SDP packet to the SIP server periodically to keep the NAT port open if it is configured to be “Keep-alive”. Configure this to be “No” if an outbound proxy is used.
  • Page 18 OPTIONS Keep Alive Max Lost Configures the maximum number of times the phone will try to send OPTIONS message consistently to server without receiving a response. If set to “3”, the phone will send OPTIONS message 3 times. If no response from the server, the phone will re-register.
  • Page 19 SIP Transport Selects the network protocol used for the SIP transport. The default setting is “UDP”. Configures whether to enable TCP Keep-alive for the TCP connection between the Enable TCP Keep-alive terminal and the SIP server. Configures whether or not to listen to multiple SIP protocols. ●...
  • Page 20 parameters when sending session timer according to “Session Expiration”. If set to “No”, session timer will be disabled. The default setting is “No”. Session Expiration is the time (in seconds) where the session is considered timed out, provided no successful session refresh transaction occurs beforehand. Session Expiration The default setting is 180.
  • Page 21 G.726-32 Packing Mode Selects “ITU” or “IETF” for G726-32 packing mode. The default setting is “ITU”. G.726-32 Dynamic Payload Type Specifies G.726-32 payload type. Valid range is 96 to 127. Default is 127. Specifies Opus payload type. Valid range is 96 to 127. It cannot be the same as iLBC Opus Payload Type or DTMF Payload Type.
  • Page 22 ● Optional The default setting is “No”. Allows users to specify the length of the SRTP calls. Available options are: ● AES 128&256 bit SRTP Key Length ● AES 128 bit ● AES 256 bit Default setting is AES 128&256 bit Enable or disable the crypto lifetime when using SRTP.
  • Page 23 Key as Send Allows users to configure either the “*” or “#” keys as the “Send” key. Please make sure the dial plan is properly configured to allow dialing * and # out. The default setting is “Pound (#)”. Configures the timeout (in seconds) for no key entry. If no key is pressed after the No Key Entry Timeout timeout, the collected digits will be sent out.
  • Page 24 Mute on Intercom Answer If enabled, the phone will mute the mirophone after answer an intercom call via Call- Info/Alert-Info. Record Configures whether to turn the recording function on or off when the "Record" key is pressed for the first time in a call using this account. For example, the SIP server Record Key Default Fuction can be configured with automatic call recording.
  • Page 25 No Answer Timeout (s) Defines the timeout (in seconds) before the call is forwarded on no answer. If enabled, the local call forward is disabled when an incoming call comes in from Enable Override Forward the configured override forward number. Disabled by Default Configures the number to override the local forward function.
  • Page 26 Note: In some cases, where the user wishes to dial strings such as *123 to activate voice mail or other applications provided by their service provider, the * should be predefined inside the dial plan feature. An example dial plan will be: { *x+ } which allows the user to dial * followed by any length of numbers.
  • Page 27 Validate Incoming SIP Messages Specifies if the phone will check the incoming SIP messages Caller ID and CSeq headers. If the message does not include the headers, it will be rejected. The default setting is “No”. Omit charset=UTF-8 in MESSAGE Omit charset=UTF-8 in MESSAGE content-type Configures whether to dial the number carried by Refer-to header after receiving out-of-dialog SIP REFER request actively.
  • Page 28 BLF Call-pickup Configures BLF Call-pickup method: ● Auto:  The phone will do either Prefix or barge in code for BLF pickup depend on which on is set. ● Force BLF Call-pickup by prefix: The phone will ignore both BLF pickup method, now the monitored VPK will only dial the extension if pressed ●...
  • Page 29 1. Expression element(element)element (element)element element(element) (element) 2. Element Rules • x：any digit number from 0-9 • +：any length after x(>=1) • [-+…] or *：Escape symbol • ()：The part that needs to be hidden, there can only be one hidden part in a rule 3.
  • Page 30 Table 9: Account page definitions Phone Settings Page Definitions Phone Settings �� General settings Basic Settings Local This parameter defines the local RTP port used to listen and transmit. It is the base RTP port for channel 0. When configured, channel 0 will use this port _value for RTP; channel 1 will use port_value+2 for RTP. Local RTP port Port ranges from 1024 to 65400 and must be even.
  • Page 31 Userna Prefix Public Mode Userna Configures the suffix of the username for public mode login. Suffix Configures remaining account with a SIP account and be able to make/receive calls on the configured account even if the user is not logged in to the public mode. Allow Multiple –...
  • Page 32 ● DND: Pressing the "Mute" key when the phone is idle will enable DND. Functio ● Idle Mute: Pressing the "Mute" key when the phone is idle will set the phone to be muted when answering incoming calls. While ● Disabled Idle Last If enabled, the number put into the ForwardAll feature will be stored the next time you use the ForwardAll softkey.
  • Page 33 Predicti Configures the predictive dialing feature on the call screen. Dialing Feature Predicti Predictive dialing feature will sequentially search the number based on the selected sources. Dialing Source Onhook Dial When the option is set to "Disabled", onhook dialing won't be interrupted by an incoming call. Barging Off- hook...
  • Page 34 Director Enable Call Complet If enabled, phone will automatically redial the previous failed call when the remote party becomes available. Service Incoming Enable Incomin If set to "Yes", phone will pop up an incoming call window to notify the call. g Call Popup Enable...
  • Page 35 Show Shows the duration of holding a call on the LCD on Hold Duratio Enabled by Default. Enable If the option is enabled, automatically unmute the phone when a user unholds the call or establishes a new call. Auto Enabled by Default Unmute In-call Dial...
  • Page 36 Overrid Configures to override the local DND function. e DND ● Off: The local DND function is normal. ● Allow All: The local DND function is invalid. ● Allow Only Contacts: When the local DND function is enabled, only local contacts and the configured override numbers can call in.
  • Page 37 Ringtone Call Progres Tones: ● Syst Ring ● Dial ● Dial ● Wait Configures ring or tone frequencies based on parameters from local telecom. The default value is North American standard. Frequencies should be configured with known values to avoid uncomfortable high pitch ●...
  • Page 38 Custom Rington Update Phone settings -> Multicast Paging Multica Paging Enable or disable multicast paging Functio Allowed Allow Multicast Paging when DND mode is enabled. In DND Default Setting is “No”. Mode Paging During active call, if incoming multicast page is higher priority (1 being the highest) than this value, the call will Barge be held, and multicast page will be played.
  • Page 39 IPv4 Address Allows users to configure the appropriate network settings on the phone to obtain IPv4 address. Users could select “DHCP”, “Static IP” or “PPPoE”. By default, it is set to “DHCP”. Specifies the name of the client. This field is optional but may be required by Host name (Option 12) Internet Service Providers.
  • Page 40 Enter the MD5 Password for the 802.1X mode. MD5 Password Note: Letters, digits and special characters including @ and – are accepted. Uploads / deletes the 802.1X CA certificate to the phone; or delete existed 802.1X 802.1X CA Certificate CA certificate from the phone. Uploads / deletes the 802.1X CA certificate to the phone;...
  • Page 41 upload a new one. OpenVPN® Client Key Password Allows user to set password for client.key file OpenVPN® TLS Key Uploads the OpenVPN® TLS .key file Selects the encryption type of the OpenVPN® TLS key. it can be set to : TLS-Auth, OpenVPN®...
  • Page 42 Enable DHCP VLAN Enables auto configure for VLAN settings through DHCP. Disabled by default. Enables/disables manual VLAN configuration. When this option is set to Disabled, Enable Manual VLAN Configuration the phone will bypass VLAN configuration and only use the DHCP VLAN to configure VLAN tag and priority.
  • Page 43 Network Settings �� SNMP Settings Enable SNMP Enable/Disable SNMP service. Default is No. Version Choose between (Version 1, Version 2, or Version 3). Port Listening Port of SNMP daemon (Default 161). Community Name of SNMP community. noAuthUser: Users with security level noAuthnoPriv and context name as noAuth. Security Level AuthUser: Users with security level authNoPriv and context name as auth.
  • Page 44 Programmable keys �� Multi-Purpose Keys (GRP2604 only) Keys Settings Mode Speed Dial: ● Select the Account to dial from. And enter the Speed Dial number in the Value field to be dialed or enter the IP address to set the Direct IP call as Speed Dial. Busy Lamp Field (BLF): ●...
  • Page 45 ● Select Account and enter account number in the Value field to allow configuration of call log for other extension. Monitored Call Park: ● Select account from Account field and enter the call park extension in the Value field to park/pick up the call, and also monitor the parked call via Line Key’s light.
  • Page 46 Enable Transfer via MPK with type BLF, Speed dial, etc, will perform as transfer MPK under active call Non-Transfer Programmable Keys �� Virtual Multi-Purpose Keys Allows the user to configure VPKs with modes such as Shared line, BLF and Speed Dial. Modes: ●...
  • Page 47 Softkey the configured softket is unable to show Layout Disabled by Default Position Custom Press on Add Custom Softkey radio button to add/configure up to custom softkeys Supported key modes Softkey are speed dial, speed dial via active account and voicemail. Dialing state: ●...
  • Page 48 Transfer Configures the transfer mode to use when pressing the "Transfer" MPK. Mode via Choose from Blind Transfer, Attended Transfer, or New Call, All for selection. Programmabl e Keys Enable Transfer via Non-Transfer MPK with type BLF, Speed dial, etc., will perform as transfer MPK under active call Programmabl e Keys Allow...
  • Page 49 Time Zone Defined Time Zone”. The syntax is: std offset dst [offset], start [/time], end [/time] Default is set to: MTZ+6MDT+5,M4.1.0,M11.1.0 MTZ+6MDT+5 This indicates a time zone with 6 hours offset with 1 hour ahead (when daylight saving) which is U.S central time.
  • Page 50 Factory Configure the password inquiry for factory reset. Reset ● Default: The password is needed when configuration via keypad menu is no Unrestricted Security ● Always Require Password: The password is needed no matter what configuration via keypad menu mode Level ● No Password Required: No password is needed no matter what configuration via keypad menu mode is. Configure the password inquiry for Wi-Fi settings.
  • Page 51 Test Checks password strength to ensure better security. Password Strength User Password Set new password for web GUI access as User. This field is case sensitive. Password Confirm Enter the new User password again to confirm. Password Admin Password Current The current admin password is required for setting a new admin password.
  • Page 52 Trusted CA Certificate Allows to upload and delete the CA Certificate file to phone. Trusted CA Certificates Note: Users can either upload the file directly from web or they can choose to provision it from their cfg.xml (1 – 6) file. Phone will verify the server certificate based on the built-in, custom or both trusted certificates list.
  • Page 53 Color 1. Default: off(idle)/green(in use) Scheme 2. Light up: green(idle)/red(in use) Audio Control Call Tone Configures the call tone volume in dB. The valid range is -15 to 15. Volume Speaker Configures speaker ring volume. The valid range is 0 to 8. Ring Volume Lock volume adjustment when the option is enabled Lock...
  • Page 54 Group Listen In a call, phone will display soft key to enable speaker listening when audio mode handset or headset. with Disabled by Deafult. Speaker Configures the transmission gain of the headset.  Headset TX Gain (dB) The default value is 0dB. Configures the receiving gain of the headset.
  • Page 55 Backlight Configures the LCD brightness when the phone is idle. Valid range is 0 to 8 where 0 is off and 8 is the Brightness: brightest，and its value cannot exceed the active value. Idle Active Configures the timeout interval of the LCD backlight. The valid range is 0 to 90. Backlight Timeout Enable...

  • Page 56: Maintenance Page Definitions

    Maintenance Page Definitions Maintenance �� Upgrade and Provisioning Firmware Upgrade via Manually Upload Upload Firmware Upload and start upgrade firmware. File to Update Upgrade via Network Firmware Allows users to choose the firmware upgrade method via TFTP, HTTP, HTTPS, FTP, FTPS  Upgrade Firmware Defines the server path for the firmware server.
  • Page 57 User Username and Passwords. Also, it will include all the changes manually made by user from web UI, or config configurat file uploaded from “Upload Device Configuration”, but not include the changes from the server provision via TFTP/FTP/FTPS/HTTP/HTTPS. Upload Device Uploads configuration file to phone.
  • Page 58 Automatic Enables automatic upgrade and provisioning. Upgrade The default setting is “No”. Start Configures whether the phone will upgrade automatically at a random time within the configured time interval. Upgrade at Random The default setting is “No” Time Firmware Specifies how firmware upgrading and provisioning request to be sent: Always Upgrade Check for New Firmware, Check New Firmware only when F/W pre/suffix Changes, Always Skip the Firmware Check.
  • Page 59 Validate To validate the hostname in the SSL certificate Hostname Certificate Enable SIP Notify Device will challenge NOTIFY with 401 when set to Yes Authentic ation Factory Press Start to begin Factory Reset of the phone. reset Maintenance �� System Diagnosis Syslog If set to SSL/TLS, the syslog messages will be sent through secured TLS protocol to syslog server.
  • Page 60 Ping Enter Ping target’s IP address or URL and click on start. Traceroute Tracerout Input target’s IP address or URL and click on start Remote Diagnostics Remote When enabled, this device will allow remote access and remote collection of logs. It will automatically end Diagnostic when it expires.
  • Page 61 On-hook Configures the Action URL to send when phone is in on-hook state. Incoming Configures the Action URL to send when phone receives an incoming call. Calls Outgoing Configures the Action URL to send when phone places a call. Calls Missed Configures the Action URL to send when phone has a missed call.
  • Page 62 Enable Configures the Action URL to send when phone enables Call Forward. Call Forward Disable Call Configures the Action URL to send when phone disables call forward. Forward Open Configures the Action URL to send when phone enables call forward always function. Forward Always Close...
  • Page 63 Extra Configure extra attribute’s name reserved for protocol specific attributes such as “jid” for XMPP protocol. If Attribute “jid” is specified, username and domain will be overridden. Name Extra Configure extra attribute’s value reserved for protocol specific attributes such as “abc@gmail.com” for “jid” of Attribute XMPP protocol.
  • Page 64 Threshold LQ causes the phone to send a critical alert quality report to the central report collector. for Moslq Warning Configure the threshold value of one way delay (in milliseconds) that causes the phone to send a warning alert Threshold quality report to the central report collector.
  • Page 65 Idle Screen XML Configures to enable idle screen XML download via HTTP, HTTPS or TFTP. Download Download Screen If set to “Yes”, the idle screen XML file will be downloaded when the phone boots up. XML at Boot-up Use Custom Filename Specifies the custom file name for XML idle screen downloaded.
  • Page 66 ● When set to “Replace”, existing groups will be completely replaced by imported one. ● When set to “Append”, the imported groups will be attended with the current one. The default setting is “Replace”. Configures to sort phonebook based on the selection of first name, last name or auto. If you select "Last name", the contact's last name will be displayed first, and the phone book will be sorted by last name;...
  • Page 67 LDAP Number Filter Configures the filter used for number lookups. Examples: (|(telephoneNumber=%)(Mobile=%)) returns all records which has the “telephoneNumber” or “Mobile” field starting with the entered prefix; (&(telephoneNumber=%) (cn=*)) returns all the records with the “telephoneNumber” field starting with the entered prefix and “cn” field set. Configures the filter used for name lookups.
  • Page 68 cn sn description LDAP Dialing Default Configures the default account used when dialing LDAP contact Account Search for exact match result. Exact Match Search Default setting is “No”. Application �� Remote Phonebook The user can configure up to 3 XML Remote Phonebooks. Display Name Configures the entry information to be shown on phone’s LCD.
  • Page 69 ● When using Peering scenario, on “System Number” field of the GRP260x specify the IP address of the peered GDS37XX. ● When using Registration scenario and both GRP260x and GDS37XX are registered on the same SIP server, specify the SIP extension of the GDS37XX on “System Number”...
  • Page 70 Network Directories Enable/Disable Broadsoft Network directories. The directory types are: ● Group Directory: Enable/Disable and rename the BroadWorks Xsi Group Directory features on the phone. If keep the Name box blank, the phone will use the default name “Group” for it. ●...

  • Page 71: Nat Settings

    HELD NAI If "Yes", Network Access Identifier (NAI) is included as a device identity in the location request sent to the Location Information Server (LIS) A user can configure multiple emergency numbers separated with the delimiter E911 Emergency Numbers symbol ";". If "Yes", E.911 INVITE message includes the "Geolocation-Routing"...
  • Page 72 Figure 7: Packet Capture when running Remote SSH capture To establish a connection using SSH, the user simply starts the client and tells it where it wants to connect by using the Remote SSH option, to do that with the grandstream GRP260x devices, Follow the below steps : 1.
  • Page 73 4. Authenticate using the credentials of the device’s web UI. 5. Set the remote capture command to other:pcap.

  • Page 74: Upgrading And Provisioning

    Once the steps are followed, an “SSH remote capture” option will be displayed on the main page of Wireshark, and when capturing a packet in the web UI of the grandstream IP phone it can be viewed and monitored on Wireshark software directly as shown in the example below: UPGRADING AND PROVISIONING Unified Firmware...

  • Page 75: Firmware Upgrade

    Firmware Upgrade The GRP260X series can be upgraded via TFTP / FTP / FTPS / HTTP / HTTPS by configuring the URL/IP Address for the TFTP / HTTP / HTTPS / FTP / FTPS server and selecting a download method. Configure a valid URL for TFTP, FTP/FTPS, or HTTP/HTTPS, the server name can be FQDN or IP address.

  • Page 76: Phone Provisioning

    When the GRP260x series boots up or reboots, it will issue a request to download an XML file named “cfgxxxxxxxxxxxx.xml”, where “xxxxxxxxxxxx” is the MAC address of the phone, i.e., “cfg000b820102ab” and “cfg000b820102ab.xml”. If the download of the “cfgxxxxxxxxxxxx.xml”...
  • Page 77 Note: (attempt to download the config file again) When doing provision on the phone, if your first config file contains p-values listed below, phone will try to download the potential second cfg.xml file and apply the second file without rebooting. Maximum 3 extra attempts. Those P-values are: *212 -- Config upgrade via *234 -- Config prefix...
  • Page 78 When P-value 22421 (or alias “provision.config.forceReboot”) is set to 1 in the config file, the phone will need to reboot if any change is applied by downloading the config file. Specifically following the process below: First-time download: 1. Phone downloaded a config file (in any supported format) with P22421 set to 1 included. 2.

  • Page 79: Restore Factory Default Settings

    Note On the latest firmware upgrade to version 1.0.3.83, the option to display upgrade prompt on LCD screensaver page was added RESTORE FACTORY DEFAULT SETTINGS Warning Restoring the Factory Default Settings will delete all configuration information on the phone. Please backup or print all the settings before you restore them to the factory default settings.

  • Page 80: Energy Saving

    Added Support For Energy Saving. [ENERGY SAVING] Added Support for the Total Number of Custom Ringtone Update. [Total number of Custom Ringtone Update] Removed Call Waiting Tone Gain from Ringtone Settings.[Phone Settings Page Definitions] Added Support to synchronize time via sip header when the NTP server is not configured. [Time and Language] Added Support to clear user data if a different user logs in.
  • Page 81 Added support to disable the mute key in the call feature. [Phone Settings Page Definitions] Added support of TCP Keep-alive for the TCP connection between the terminal and the SIP server. [Account Page Definitions] Added support of RTCP Keep-alive method. [Account Page Definitions] Added support of RTP Keep-alive method.
  • Page 82 Grandstream Networks, Inc. is not permitted. Grandstream is a registered trademark and the Grandstream logo is the trademark of Grandstream Networks, Inc. in the United States, Europe, and other countries.
  • Page 83 If this happens, the telephone company will provide advance notice in order for you to make the necessary modifications in order to maintain uninterrupted service. If any trouble experienced with this equipment, please contact (Agent in the US): Company Name: Grandstream Networks, Inc. Address: 126 Brookline Ave, 3rd Floor Boston, MA 02215, USA Tel: 1-617-5669300 Fax: 1-617-2491987...

  • Page 84: Gnu Gpl Information

    20 cm between the radiator and your body. CE Authentication Hereby, Grandstream Networks, Inc. declares that the radio equipment GRP2602W are in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: https://www.grandstream.com/support/resources/...

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