ATCOM D2X User Manual
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ATCOM D2X User Manual

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D2X IP Phone User Manual
Version: 1.0
2019-02-26

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  • Page 1 D2X IP Phone User Manual Version: 1.0 2019-02-26...
  • Page 2 D2X IP Phone User Manual Copyright © 2019 ATCOM TECHNOLOGY Copyright © 2019 ATCOM Technology CO., LTD. All rights reserved. No parts of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, photocopying, recording or otherwise, for any purpose, without the express written permission of ATCOM Technology CO., LTD.

  • Page 3: Contact Atcom

    D2X IP Phone User Manual Contact ATCOM Overview of ATCOM ATCOM is the leading VoIP hardware manufacturer in global market. We have been keeping innovating with customer’s needs oriented, working with partners to establish a total solution for SMB VoIP with IP phone.

  • Page 4: Table Of Contents

    D2X IP Phone User Manual Content Contact ATCOM ................. 3 1. Overview of D2X ................7 1.1. Interface ................. 8 1.2. Hardware ................8 1.3. Software ................8 1.4. Network ................9 1.5. Management and Maintenance ............9 1.6. Protocol ................9 1.7.
  • Page 5 D2X IP Phone User Manual 3.7. 3-Way Conference ..............22 3.8. Hang up the phone ..............23 3.9. Voicemail ................24 4. Configuration ................24 4.1. Guide document ..............25 4.2. Status info ................. 26 4.3. Multi-Scene ................. 28 4.3.1. Configure the multiple scene from the LCD setting ......28 4.3.2.
  • Page 6 D2X IP Phone User Manual 5.1. Codecs ................75 5.2. Capture and Upgrading ............... 76 5.3. Auto Provision ..............77 5.4. Export & Import configuration file ..........79 5.4.1. Export configuration file ............79 5.4.2. Import configuration file ............80 5.5.

  • Page 7: Overview Of D2X

    D2X IP Phone User Manual 1. Overview of D2X Type Power adapter Wi-Fi 1000M Necessary Optional accessory ATCOM TECHNOLOGY CO., LIMITE www.atcom.cn...

  • Page 8: Interface

    D2X IP Phone User Manual 1.1. Interface Power Input DC 5V-600mA or POE LAN Port RJ45 PC Port RJ45 Headset Jack Handset Jack 1.2. Hardware 128*64 250MHz Dual-Core LED Indicator 1 Status Light 1.3. Software  Sip 2.0 (RFC3261) and other related SIP RFCs ...

  • Page 9: Network

    D2X IP Phone User Manual  802.1X, LLDP  WEB access with different login level  Soft button: soft button *4  Redundancy SIP server  Multi-language: English, French, Hebrew, Russian, Spanish, Chinese, Persian, Polish, Portuguese, Turkish, German, Italian ...

  • Page 10: Compliant And Certified Standard

    D2X IP Phone User Manual  TFTP: Trivial File Transfer Protocol  HTTP:Hypertext Transfer Protocol  FTP:File Transfer Protocol 1.7. Compliant and Certified Standard   Comply with ROHS in EU  Comply with ROHS in China   Operation temperature: -10 ~ 50° C ...

  • Page 11: Installation

    D2X IP Phone User Manual D2X is able to be connected with network via LAN port. Under the Bridge mode, other devices (Laptop, IP phone) is able to access network via the PC port of D2X. 1.10.Installation 1.1 . Stand bracket installation instruction A.
  • Page 12 D2X IP Phone User Manual B. After installation, the picture is as below: C. Remove the stand bracket: Push the joint of stand to left and pull the stand according to the direction of the arrow. When the joints are pulled out of the slot, you can take off the stand bracket 1.2 .

  • Page 13: Keypad And Gui

    D2X IP Phone User Manual 2. Keypad and GUI 2.1. Keypad ATCOM TECHNOLOGY CO., LIMITE www.atcom.cn...
  • Page 14 D2X IP Phone User Manual Soft Keys Press to select a function which displayed at the softkey zone of screen Display all optional functions at the last line of LCD screen. It can change the soft keys feature from the multiple scene key.

  • Page 15: Starting

    BLF programmable keys. Adjust the volume (speaker/handset/headset/ring). Volume level will be displayed on LCD when pressing volume key. Confirm users’ operation and show status when D2X is idle. The fourth soft key Default Menu key can enter menu settings. Pick up and hung up under the speaker mode.

  • Page 16: Standby

    D2X IP Phone User Manual 2. After absolute boot up (first use or after reset to factory setting), User can select the Language and time manually. 2.3. Standby ATCOM TECHNOLOGY CO., LIMITE www.atcom.cn...
  • Page 17 D2X IP Phone User Manual Area Item Description Show the default account and indicate the call status Time Date Softkey：”History”, “Directory”, “DND,” “Menu” Line keys Icon on Standby UI Icon Description The account is registered successfully. The account is not registered successfully.

  • Page 18: Call Function

    D2X IP Phone User Manual Calling via Speaker. Calling via headset. Call Forward is activated. New Voicemail. Auto-Answer is activated. DND is activated 3. Call Function 3.1. Answer the calls When there is an incoming call, phone will remind user with ringing. There are some ways to answer the call: A.

  • Page 19: Make Calls

    D2X IP Phone User Manual C. Answer by headset Keep your microphone connected with the RJ9 headset jack, when there is an incoming call, press and talk with the caller. If you want to hang up, please press again. Pressing can change calling or talking into speaker mode, and lifting the handset switches to handset mode.

  • Page 20: Multiple Line Dial-Up

    D2X IP Phone User Manual C. Use the headset Press Key, the LCD will show the current lines (user is able to switch from account 1 to account 6 by pressing the up key or down key beside the LCD). Input the phone number and press soft key "Send"...

  • Page 21: Call Hold

    D2X IP Phone User Manual D2X supports up to 24 concurrent calls. If there is a new incoming call when you’re talking on D2X, the new incoming call will be displayed on LCD and status indicator LED will be fast blinking.

  • Page 22: Mute Calls

    If the target number has been setup in the current BLF list, and you have already finished the necessary setup on Webpage of D2X, there is an easier way to complete the Blind transfer. While calling, press the corresponding BLF key of the target number, the blind transfer will be achieved.

  • Page 23: Hang Up The Phone

    D2X IP Phone User Manual 2.1. While on the Conf call, the initiator can press the ‘Mute’ soft key to forbidden the chosen conf member speak; 2.2. After ‘Mute’, the initiator can press ‘UnMute’ to recover the chosen ways speak.

  • Page 24: Voicemail

    D2X IP Phone User Manual 4. Headset Hang up Press key at headset model, the current calling will be hung up. 5. Hang up one line call Press the hook to hang up the current calling when 2 calls happened simultaneously.

  • Page 25: Guide Document

    D2X IP Phone User Manual Number Key“1” Enter “Status” Number Key“2” Enter “Multiple scene” Number Key“3” Enter “Feature” Number Key“4” Enter “Directory” Enter “History” Number Key“5” Enter “Message” Number Key“6” Enter “Settings” Number Key“7” Enter “Display” Number Key“8” 4.1. Guide document Press the ‘Guide’...

  • Page 26: Status Info

    D2X IP Phone User Manual Press number 1 Enter the Introduction for Panel key Press number 2 Enter the One-click Use Press number 3 Enter the How to enter the menu Press number 4 Enter the how to set the customize panel, to introduce how to...
  • Page 27 D2X IP Phone User Manual Details Status Select “More” and then press the softkey “Enter” to check details info, and move the navigation key to check more. Press the softkey “Enter” to check status info, and “Back” to return the Basis Status page.

  • Page 28: Multi-Scene

    D2X IP Phone User Manual 4.3. Multi-Scene Press the multiple scene key can switch to other softkey mode, and the default scene softkey feature is BLF. in our default setting you can press the scene key change 1 softkey scene, User can add more softkey scenes from the web and LCD setting, the most can switch 4 different softkey scenes and configure 16 BLF keys.

  • Page 29: Configure The Multiple Scene From The Webpage

    D2X IP Phone User Manual 4. Enter to the Scene1 interface, press the down key, user can configure the blf account or switch to another programmable feature. 4.3.2. Configure the multiple scene from the Webpage Via web: DSS keys→Multiple scenario...

  • Page 30: Call Features

    D2X IP Phone User Manual 4.4. Call Features In this part, we will introduce the following content:  Call Forward  Call Waiting  Auto Answer   DSS Keys  Key as send  Hotline ATCOM TECHNOLOGY CO., LIMITE...

  • Page 31: Call Forward

    D2X IP Phone User Manual  Anonymous Calls 4.4.1. Call Forward “Call Forward” includes “Always Forward”, “Busy Forward”, “No Answer Forward”. “Always Forward” has the highest priority, and “Busy Forward” has the same priority as “No Answer Forward”, that means once the function of “Always Forward” is activated, other call forward features will be unavailable.
  • Page 32 D2X IP Phone User Manual forward directly Busy Forward It means the phone is busy once the phone is not at standby mode. Setup this feature as below: Item Operation Description Busy Switch on or Switch off the feature. “Enable”mean this feature is enabled，...
  • Page 33 D2X IP Phone User Manual Item Operation Description No Answer Switch on or Switch off the feature. “On”mean this feature is activated， Press the key “Off”mean this feature is softkey “Switch”to setup unactivated . The Number key, “*”key, Forward to Setup the target phone number which and “#”are permitted to be...

  • Page 34: Call Waiting

    D2X IP Phone User Manual If choose custom mode, user can configure each or all accounts call forward feature, and this is our default mode. Notes: after enable the emergency feature, you can input the Authorized accounts that it could not effective by the call forward feature.

  • Page 35: Auto Answer

    D2X IP Phone User Manual Item Operation Description Call Waiting Switch on or Switch off the feature. “Enable”mean this feature is Press the key enabled，“Disable”mean this feature softkey “Switch” to setup is disabled. Call Waiting Tone Switch on or Switch off the prompt playing.

  • Page 36: Dss Keys

    D2X IP Phone User Manual The Icon will be indicated once “Auto Answer” is available。 Setup “Auto Answer” via Web：“Phone”→ “Feature”→ “General information”→ “Auto Answer” 4.4.4. DSS Keys The programmable keys include Line keys, Memory keys (aside the BLF LCD Display), Programmable keys and Soft keys on Standby UI.
  • Page 37 D2X IP Phone User Manual Item Description Account ID 、 To display the account ID, press the soft key “Switch” or to modify, the optional value is Account 1 to 6. Account name Display the account name of each account ID, non-modifiable.
  • Page 38 D2X IP Phone User Manual Conference The 3-way conference will be setup by pressing the key “Conf” while on calling. For more info, please refer to Chapter 3.8。 The configuration item Label is a name to identify the key on LED, can be set as “conference”.
  • Page 39 D2X IP Phone User Manual Item Description Value The phone number monitored for pickup Label D2X cannot definition label Reminding：This code must be set for pickup, and this code can be set via Web only. Set the Pickup code as follow：...
  • Page 40 D2X IP Phone User Manual Directory Press this key to access Directory. Speed Dial Press this key while standby state, the specified target phone number will be dial from the specified account. Item Description Value The target phone number for speed dial...

  • Page 41: Dnd

    D2X IP Phone User Manual 4.4.5. DND The phone enabled the DND(Do not diturb) feature, the phone reject all the incoming call, and the phone would show icon. IP phone receive an incoming invite message and responding 480 temporarily unavailable.
  • Page 42 D2X IP Phone User Manual Setup DND feature Via Web Set DND via web: Phone→Forward&DND→DND User can choose DND mode: 1. Phone If choose Phone mode, once enable the DND feature, it is used for all the phone accounts. 2. Custom If choose custom mode, user can configure each or all accounts call forward feature, and this is our default mode.

  • Page 43: Key As Send

    D2X IP Phone User Manual 4.4.5. Key as Send The key “Key as Send” has the same function as the soft key “Dial”. Reminding: This key is not available while pre-dial. It’s the only way to press the soft key “Dial”...

  • Page 44: Hotline

    D2X IP Phone User Manual The default value is “#”, and it could be set as “*”. If set the value as “disable”, it means the function “Key as Send” is forbidden. Set “Key as Send” via web ：Phone→Features→General Information→Key As Send.
  • Page 45 D2X IP Phone User Manual If switch on the feature “Rejection”, all incoming anonymous calls will be blocked automatically. Item Operation Description Accounts press the soft key “Switch” or Select the Account for anonymous call. to modify, Anonymous press the soft key “Switch” or...

  • Page 46: Contacts

    D2X IP Phone User Manual code to the server Reject Off Set the feature code to turning off Code anonymous call rejection, the The Number key, “*”key, and phone disables anonymous call “#”are permitted to be input. rejection by sending the feature code to the server Set Anonymous Call via web：Account→Basic→Select the Account→Anonymous Call.
  • Page 47 D2X IP Phone User Manual All operations on Directory via Web will be not active until click “Save”. When too much item existed in the Directory, it will be an easy way to search by keyword about name, Office Number, Mobile Number or other Number. The exactly matched item will be listed, otherwise you will be prompted “Not find the specified contact”.
  • Page 48 D2X IP Phone User Manual Path to set on the phone: Press Menu key→Contacts→Local Contacts→All contact-> Select the record→Dial。 If only one phone number saved with the selected contact person, the phone number will be dialed while calling the contact person.
  • Page 49 D2X IP Phone User Manual Add new contact via web：Contacts→ Contacts→Input messages→Add→Save. Edit the contact User must re-edit the contact item while updating one item of local phonebook. Path to edit the contact on the phone：Press Menu key→Contacts→Local Contacts→All contacts→ Select the item to edit→Option→Edit→OK.
  • Page 50 D2X IP Phone User Manual Move the contact item to blacklist via web ：Contacts→ Contacts→Select the item to move to blacklist→Click on “Move to black List”→Click on “Save”。 Blacklist The purpose of blacklist’s feature is to block the phone number inside blacklist to call the host phone number, but it’s available for the hosted phone number to call any phone number in the...
  • Page 51 D2X IP Phone User Manual 1. Remote URL: Set a remote phonebook download path. Support the TFTP,FTP,HTTP and HTTPs server. 2. Display name: Set a display name on the phone. 3. Search Remote Phonebook name: Select “Yes” or “No” to enable or disable search remote phonebook name.

  • Page 52: History

    D2X IP Phone User Manual LDAP Number Filter: Set the number of the LDAP search attributes. Server Address: Set the LDAP server domain name or IP address. Port: Set the LDAP server port number. Default to 389. Base: Set the LDAP search base.
  • Page 53 D2X IP Phone User Manual Also, user is able to check the detail info of call history via Web, but only review operation is allowed while accessing via web. Make calls from history Path to make calls from history on the phone：Enter history UI→Select the item to dial→...
  • Page 54 D2X IP Phone User Manual Add to Contact 1. Enter “Call History”→Select the target item→Option→add to Contact→Press the or soft key “Confirm”. At this moment an “edit” page will be popped up. please move the navigation key to check more The item of “Office”, “Mobile”...

  • Page 55: Message

    D2X IP Phone User Manual Path to delete all history’s records on the phone：Enter History UI→Option→Delete all→ Press or “OK”. 4.7. Message 4.7.1. Voice Mail User will benefit from the feature of voicemail when they’re not available to answer an incoming call or missed some incoming calls.

  • Page 56: Settings

    D2X IP Phone User Manual View Voice Mail User is able to check voicemail in below ways: 1. Setup voicemail number→Press the key →Select “Message”→“View Voicemail” 2. Press the key Select the account with “N new N old mail”, and press the soft key “Connect”, the corresponding voicemail will be connected.
  • Page 57 2. Time &Date Time & Date will be displayed at the standby page of D2X，and these info will be related with all process of IP phone. “Time & Date” can be gained by NTP Server automatically or set manually.
  • Page 58 D2X IP Phone User Manual Item Operation Description Time Zone Select the correct Time Press the key or soft Zone for the IP phone. key “Switch” to modify it. NTP Server Specify the NTP Server Key in the IP address of domain name by the number keys,”*”,”#”...
  • Page 59 D2X IP Phone User Manual Item Operation Description Time Zone Set a time zone matches condition Click drop-down box to select Primary NTP The primary NTP server that provide Manual input Server time and date Secondary NTP The secondary NTP server that provide...
  • Page 60 D2X IP Phone User Manual Offset(minutes) The offset time that daylight rule takes Manual input effect Manual Settings Path to set on the phone：Press the menu key→Settings→Basic Settings→Time & Date→ Manual Settings. Please move the navigation key to check more:...
  • Page 61 D2X IP Phone User Manual Item Operation Description Manual Time Click the drop-down box A switch to control the status whether to select to enable the manual time or not Date Set date manually Manual input, click “Generated Date” to...
  • Page 62 Set the Time &Date Format via Web：Phone→Preference 4. Ringtones 5 different ringtones have been provided by D2X for selection. Path to set on the phone： Press the Menu softkey→Settings→Basic Settings→Ringtones。 For the selected ringtone，there is a dot inside the circle. Press the key to select other ringtone for playing.
  • Page 63 D2X IP Phone User Manual 6. Phone Unlock PIN Phone Unlock PIN: Unlock the phone locked conditions. please move the navigation key to check more and press the cancel key to back the function, Item Operation Description Current PIN Input the phone current PIN,...
  • Page 64 D2X IP Phone User Manual →Settings→Advanced Settings→ path to set the account info on phone：Press Input password→Accounts. Item Description Activation The status of account，the default is “Enable”，if set this as “Disable”, the account will be forbidden. Label It will show on the phone, can skip this item...
  • Page 65 D2X IP Phone User Manual 2. Set Password The password for Advanced Settings also is used for Web access as the role “admin”. Path to →Settings→Advanced Settings→Input password→ set password on phone: Press Set Password. ATCOM TECHNOLOGY CO., LIMITE www.atcom.cn...
  • Page 66 D2X IP Phone User Manual Item Description Current PWD The current password for web access as the role of “admin”, it’s “admin” by default. New PWD To set the new password, blank is acceptable. Confirm PWD Input the new password again, to confirm the new password.
  • Page 67 D2X IP Phone User Manual LAN Port  Connect the phone with local network via LAN port, to gain IP address in 3 ways: DHCP, Static. Set the LAN port via Web：Network→ Basic. DHCP The phone gains IP address via DHCP and Static DNS by default.
  • Page 68 Set the VPN via Web：Network →Advanced→VPN.  LLDP D2X supports LLDP, and enable in default. If the phone is connected to a switch and using LLDP, the switch would notifies IP phone of VLAN information. Set the LLDP via Web：Network →Advanced→LLDP ATCOM TECHNOLOGY CO., LIMITE...
  • Page 69 D2X IP Phone User Manual  802.1X IEEE 802.1X authentication is an IEEE standard for Port-based Network Access Control(PNAC), part of the IEEE 802.1 group of networking protocols. It offers an authentication mechanism for devices to connect to a LAN or WLAN.
  • Page 70 D2X IP Phone User Manual 4. Keypad Lock It support enable or disable the keypad lock feature, if enable, the default password is 123: Please move the navigation key to check more Keypad lock via webpage: phone→Phone lock 1. Keypad Lock Enable: select “Yes” or “No” to enable or disable keypad lock 2.
  • Page 71 D2X IP Phone User Manual 3. Phone Unlock PIN(0~15 Digit):set the phone unlock PIN. Range: 0~15 digit. 4. Phone Lock Time Out(0~3600s): set the phone lock time out. Range: 0~3600s 5. Emergency :set emergency number. Default to 110.120.119 and 911.
  • Page 72 D2X IP Phone User Manual 6. Reset to factory Once reset to factory, all parameter settings will back to the factory default value, and all configure will be cleared, users must be careful on this. Reset Option: Full Reset, Config Reset and UserData Reset.

  • Page 73: Display

    D2X IP Phone User Manual Reset to factory via Web：Phone→Upgrade→Reset to Factory. 4.9. Display For more convenient, users are able to adjust the contrast grade and backlight of the main LCD display. ATCOM TECHNOLOGY CO., LIMITE www.atcom.cn...
  • Page 74 D2X IP Phone User Manual 1. Slave Contrast There are 9 different contrast grades for options, press the soft key “Switch” or the key for modification,8 is the default value. 2. Backlight Backlight is the brightness of LCD, also it has been defined as 9 different grades. The number “9”...

  • Page 75: Advanced Feature

    D2X IP Phone User Manual 5. Advanced Feature 5.1. Codecs D2X support multiple codecs, users can select the codes via Web. The codec include: PCMU, PCMA, G729, G722, iLBC_13_3, iLBC_15_2, G726-32, G726-16, G726-40, G726-24, L16, OPUS. ATCOM TECHNOLOGY CO., LIMITE...

  • Page 76: Capture And Upgrading

    D2X IP Phone User Manual Notes: OPUS is our new support codec. means to enable the item of “Disabled Codes”； means to disable the item of “Enabled Codes”； Click the button to sort all enabled codes, the top item has the highest priority.

  • Page 77: Auto Provision

    D2X IP Phone User Manual Click the button “Start” to start the capture and click the button “Stop” to end the capture. Then click the button “export” to download the capture file. Upgrade firmware: Via webpage:phone→ Upgrade→ Upgrade Firmware Before upgrading the firmware of phone, users are suggested to check the version of current firmware.
  • Page 78 D2X IP Phone User Manual Item Description PnP Active Select “On” or “Off” to enable or disablePNP automatic updates DHCP Active Select “On” or “Off” to enable or disableDHCP option automatic updates Provisioning The address to save control file for auto upgrading, it can filled by http, https, tftp and ftp server，for example, tftp://192.168.1.111...

  • Page 79: Export & Import Configuration File

    D2X IP Phone User Manual Check New Config If set this parameter as “On”, the phone will do some check for upgrading, and it will upgrade automatically once the conditions are met Repeatedly If set this parameter as “On”, the phone will do some check for upgrading after “Interval(minutes)”，and it will upgrade automatically...

  • Page 80: Import Configuration File

    D2X IP Phone User Manual To modify the exported configuration file, you should to decompress it until you get a file names as configuration. The content of configuration file listed as below, 5.4.2. Import configuration file Click the button “Choose file” to select the target file for importing, and then click the button “Import”.

  • Page 81: Dial Plan

    D2X IP Phone User Manual Item Description Log Location You can import the system log to local PC or remote Server. Server Name User must fill the address of server if you choose to export the system log to remote server.

  • Page 82: Replace Rule

    D2X IP Phone User Manual 5.6.1. Replace Rule Dial plan “Replace Rule” means to replace a batch of complicated character string by some simple characters, to make a speed dial. Item Description Sample Number The string works as replacer, not null Set Number as “6”,...

  • Page 83: Dial-Now

    D2X IP Phone User Manual Save Any alteration won’t take effect until the button “Save” is clicked. 5.6.2. Dial-now Dial plan “Dial-now” permits the corresponding phone to be dialed instantly without pressing the soft key “Dial”, once the input has been matched. It works like a hotline.

  • Page 84: Area Code

    D2X IP Phone User Manual Delete Delete one added or saved dial-now dial numbersmatches the plan or multiple ones, click the frame after dial plan, and hotline the specified dial-now dial plan before takes effect in delete it, and then click button “Delete”...

  • Page 85: Block Out

    D2X IP Phone User Manual Confirm Apply this dial plan is not between minimum length and the mD2X(w)imum length, area Recover all input fields to the state code will not take effect Cancel that saved at latest time 5.6.4. Block Out Dial plan “Block out”...

  • Page 86: Faq

    D2X IP Phone User Manual 6. FAQ 6.1. How to reset to factory There are 3 methods for factory reset： 1. Factory reset via phone： a) Press the Menu sofykey. b) Select “Settings”, then press the soft key “Enter” c) Select “Advanced Settings”，then press the soft key“Enter”...

  • Page 87: Upgrade The Firmware On Safe Mode

    D2X IP Phone User Manual 6.2. Upgrade the firmware on safe mode If the phone can’t be started successfully, user is able to upgrade the firmware on post mode, a) Setup a TFTP Server and set the PC’s IP address as “192.168.1.200”...

  • Page 88: Trouble Shooting

    D2X IP Phone User Manual 7.Trouble shooting 7.1. The phone is failed to register to SIP server 1. First of all, check the IP address. If the LAN port is DHCP, please ensure the DHCP server has been enabled. ATCOM TECHNOLOGY CO., LIMITE...

  • Page 89: The Phone Is Failed To Gain Ip Address

    D2X IP Phone User Manual 2. Check the network gateway 3. Check the DNS 4. Make sure the input account matched the one provided by Service Provider 5. Make sure SIP Server has been enabled already 6. Make sure the Port of SIP Server, it’s 5060 by default 7.2.

  • Page 90: Fcc Caution

    D2X IP Phone User Manual Bxfer：Blind Transfer Conf：Conference Num：Number SIP：Session Initiate Protocol RTP：Real-time Transport Protocol SDP：Session Description Protocol VPN：Virtual Private Network VLAN：Virtual Local Area Network QoS：Quality of Service Syslog：System log UDP：User Data Protocol TCP：Transmission Control Protocol TLS：Transport Layer Security Protocol BLF：Busy Lamp Field...
  • Page 91 D2X IP Phone User Manual The devices complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) The device may not cause harmful interference, (2) the device must accept any interference received, including interference that may cause undesired operation.

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