[asterisk-users] Working Config for Polycom VVX and Auto Answer

Noah Miller noahisaacmiller at gmail.com
Fri Mar 14 11:36:02 CDT 2014

Hi -

Just wondering if anyone has gotten a Polycom VVX phone to
successfully do an Auto Answer with asterisk.  I have an older
generation of Polycom phones that do this just fine, but I can't seem
to make the VVX phones work.

I tried the guide here:

And I have this in my diaplan:

exten = _8XX,1,SIPAddHeader(Alert-Info: info=ringAutoAnswer)
exten = _8XX,2,Dial(SIP/${EXTEN:1},20,tk)

But whenever I attempt a call to a matching exten, it just rings
normally for the 20 seconds I have indicated here and never answers.

I found a setting in the phone's GUI: "Auto Answer SIP Calls".  When I
set this to "Yes".  It will auto answer, but it auto answers ALL
calls, not just ones with the Alert-Info header set.

Any guidance is appreciated.


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