asterisk users - Mar 2006 - Unable to forward frame

> exten => _3XX,1,Answer
> exten => _3XX,2,Dial(Sip/${EXTEN},6000,t)
> exten => _3XX,3,Hangup
Why do you Answer before you Dial here? I had a problem where calls were
misbehaving and someone asked me that same question. Without really
understanding why I removed the Answer and it then just worked.

I think the idea is that Dial connects the incoming channel - still in
the 'ringing' state - to the outgoing channel, and then the outgoing
channel takes care of answering the incoming call (or not).

Or maybe you know what you are doing and there is a perfectly good
reason to Answer before Dial.

James

It has to do with transcoding. If Asterisk cannot 'speak' the codec it
cannot answer the call and is 'unable to forward the frame.
> -----Original Message-----
> From: asterisk-users-bounces@lists.digium.com 
> [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of 
> James Harper
> Sent: Wednesday, March 15, 2006 5:08 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: RE: [Asterisk-Users] Unable to forward frame
> 
> > exten => _3XX,1,Answer
> > exten => _3XX,2,Dial(Sip/${EXTEN},6000,t) exten => _3XX,3,Hangup
> 
> Why do you Answer before you Dial here? I had a problem where 
> calls were misbehaving and someone asked me that same 
> question. Without really understanding why I removed the 
> Answer and it then just worked.
> 
> I think the idea is that Dial connects the incoming channel - 
> still in the 'ringing' state - to the outgoing channel, and 
> then the outgoing channel takes care of answering the 
> incoming call (or not).
> 
> Or maybe you know what you are doing and there is a perfectly 
> good reason to Answer before Dial.
> 
> James
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