That's an answer to the wrong question. See example below. Rephrased: Why do folks think they have to use Answer in the sequence
when Playback (etc) is _not_ used?
[voiptalk.org] ;forwards any calls starting with an "8" thru voiptalk.org exten => _8.,1,Answer exten => _8.,3,SetCIDNum(55555555) exten => _8.,4,SetCIDName(My Name And Surname) exten => _8.,5,Dial(SIP/${EXTEN:[EMAIL PROTECTED],,g) exten => _8.,6,HangUp
Urban myth. There is no reason to use answer for the example above.
People just repeat what they have been told or have heard (I've done that myself too occasionally) and so incorrect information gets passed around.
In fact using Answer could very well prevent the caller from hearing ringing. I don't know, I would have to look at a SIP debug.
In the example above the call will hangup if the destination is unavailable OR busy. You usually want to handle these events by looking at the DIALSTATUS variable. See the stdexten macro in extensions.conf.sample.
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