Configure a Yealink T21 with a VoIPOffice extension

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The following guide is for configuring a Yealink T21 with a VoIPOffice extension.

You will need:

  • The VoIPOffice IP address – e.g. "77.240.xxx.xxx"
  • The Extension number – e.g. "1001"
  • The extension password/Secret (can be found by going to the edit mode of that specific extension, see the screenshot below)

1) Connect the handset and the computer to the same network using an Ethernet cable.

2) Find the IP address of the handset by pressing Menu -> Status

3) On a computer connected to the same router/network as the Yealink T21P phone, open the web browser and type the full IP address into the address bar.

4) On the login screen that will appear, enter "admin" (Case sensitive) as both username and password.

5) Once logged in, from the menu, select the "Account " tab, then select an account (e.g. Account 2) from the drop down menu, enter the details below:

Line Active: Set to enable

Label: The chosen extension number (e.g. 1001)

Display Name: Any name

Register Name: The chosen extension number

User name: The chosen extension number

Password: The extension's password (secret)

Server Host: The IP address of your VoIPOffice (e.g. 77.240.58.105)   Port: 5060

Server Expires: 3600

The rest should remain as default.

6) Click "Confirm" to save and apply your changes.

7) To check if the phone is registered, dial 902 from the handset. If you hear a congratulation message, then the registration was successful.

 

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This article is intended as a guide only and should be used in conjunction with any manufacturer or developer instructions available. The information in this article was correct at the time that the article was last updated. Differing product versions may cause variations to the instructions given and may also have an impact on any visual aid provided. Telappliant reserve the right to make any modifications without prior notification.