Yealink Forums

Greetings! We set up the following SIP phones: Yealink SIP-T31, T-46U T-48U. The following problem was found on all models - when making a call, the number of the called subscriber is displayed on the phone screen for a moment, and then the phone number from which the call was made. Regardless of whether the LDAP address book is used or not. But the call history is correct. How can I make the called caller appear on the screen during the entire conversation? I'm asking for help! Thank you))

I attach 2 screenshots
On the 1st: the called subscriber is displayed for a moment.
On the 2nd: the phone number from which we are calling is displayed.

The caller is 30032
The called subscriber is 30232

The real source of the issue is the PBX, it response to the call with a new caller ID (your own).

See here how some folks solved it on their PBX (FreePBX) http://forum.yealink.com/forum/showthrea...1#pid13291 but the same idea would apply to any PBX (you just need to ask that PBX people where exactly you can set it.)

The workaround would be in the Yealink phone to disable this feature of updating the Caller ID based on the SIP headers by setting (only available in provisioning):

See that thread and this Yealink guide https://support.yealink.com/en/portal/do...5664fff1aa