What's SIP header for "auto-answer"?

[crtg08]

Hello,

What's is SIP Header for 3CX auto answer feature?

Thanks..

 

[ian.watts]

Header?
I ran a WireShark on an inbound call on a test PBX and test trunk with 3CXPhone set to Auto-Ans.. there appears nothing out of the ordinary.

The capture shows 180 Ringing followed by a 200 OK a fraction after that, from my phone to the PBX, with SDP to set up the streams on the 200.

 

[crtg08]

Hi,

Normally I am using this header "SIPAddHeader(Call-Info:\;Answer-After=0)" for grandstream. But I couldn't find for 3CX.
Have you used like this header before?

 

[crtg08]

anyone?

 

[lneblett]

I am not aware of a Sip request/response for an auto-answer. the far end device is usually set for AA and does so when it sees a ringing request. If the far end device is not set to AA, i am not aware of a way of making it auto answer (unless it is set to allow page/intercom, which is a different setting altogether).