This guide explains how to set up the Yealink T2 and Yealink T4 series handsets to connect to the SureVoIP Single User and Hosted VoIP service.

These instructions apply to:

  • Yealink T19P (includes the Yealink T19P E2)
  • Yealink T20P
  • Yealink T21P (includes the Yealink T21P E2)
  • Yealink T22P
  • Yealink T23G
  • Yealink T26P
  • Yealink T27P
  • Yealink T27G
  • Yealink T28P
  • Yealink T29G
  • Yealink T40P
  • Yealink T41P
  • Yealink T42G
  • Yealink T46G
  • Yealink T48G

These instructions will also apply to the Yealink T18P, Yealink T3 series and Yealink T4 series handsets.

For the Yealink T18P, you will need to obtain the IP address by following these instructions first as there is no display.

If you have purchased your Yealink handset from us directly then your handset will be automatically provisioned and no manual configuration will be required. 

See the Yealink official website for further information on the Yealink handsets.


  1. You will need your Welcome Pack to hand as it contains your credentials
  2. In your web browser, type in the IP address of your handset.
    To find out the IP address, press Menu then 1. Status and 1. IP is the IP address.
    The default username is admin and the default password is admin followed immediately by the last 6 digits of the MAC address in upper-case.
  3. Click on the Account tab.
  4. Select Account 1
    Or another unused account if Account 1 is already used. Note which account you use.
    • Account Active should be On
    • The label should be User Extension
    • Display Name should be User Extension or your own name. This will display on your telephone phone screen when idle.
    • Register Name will be your SIP Username/Auth ID - this will be listed in your Welcome Pack
    • User Name will be your SIP Username/Auth ID - this will be listed in your Welcome Pack
    • Password will be your SIP Password(Secret) - this will be listed in your Welcome Pack
    • SIP Server will be your SIP Registrar and Port should be 5060 - this will be listed in your Welcome Pack
    • Transport should be UDP.
    • Voice Mail: N/A
    • NAT Traversal should be Disabled

Important Factors


Active Line: Enable

Label: extension number (e.g. 102, 129, 130)

Dispaly Name: extension number (e.g. 102, 129, 130) or Username



Password: ***********

VPBX Server Address:

Approved SIP Servers are, and

our username is an email used to register a specific extension or user on our PBX System.

Always replace @ with  _ when registering our your smartphone or IP Phones/ IP Deskphone.