[asterisk-users] No audio on call forward after upgrade from Asterisk 1.4 to 1.6

[Philipp von Klitzing]

Hi!

> After upgrading to Asterisk 1.6, we simply get no audio until the dialplan
> finishes. On the Asterisk console, I can see that the sound file is indeed
> playing, but we can't hear it. [...]
> 
> I have tried so many things that I have lost count, and I humbly ask the
> collective intelligence of the Asterisk community for assistance.

For a start: 

* upgarde to the current release of 1.6.2.x
* does that message play when you call it without a forward (302) on your 
admin phone?
* convert the .gsm prompt to a .wav or .alaw or .ulaw prompt and see if 
that improves matters
* do a "RTP debug" to see if there is any RTP being sent at all
* consider ChanSpy for listening in (although I doubt that'll help you)

Philipp