T26P autoanswer every calls

[gmce]

Hallo, i've got 6 Yealink T26P at my office and i am trying to setup autoanswer to function proporly but i've a big problem.

The T26P autoanswer every calls, even if no sip headers with CALL-INFO are set. They auto answer calls from queues, from ring groups, from internal, no matter what, each times a phone rings they answer automagically.

About firmware the current setup is this:

4 T26P with firmware 6.61.0.83 and hardware 4.0.1.38
1 T26P with firmware 6.72.0.30 and hardware 4.0.1.38
1 T26P with firmware 6.70.23.10 and hardware 4.0.1.44

There are no differences between them, they all have the auto-answer problem.

Kind regards, Marco.

[Yealink Support]

Do you enable auto answer in phone configuration?
Take T26-6.72.0.30 for example, go to webpage->Account->Basic, disabled Auto Answer .

[gmce]

Thanks support.
OK i didn't know that the autoanswer with the CALL-INFO was implicit in T26.

Corrected the code to "Variable: __SIPADDHEADER51=Call-Info: answer-after=0.001\r\n" and now works like a charm.
I've used answer-after=0.001 instead using 0 from AMI because the phone miss the call with 0 seconds.