[Asterisk-Dev] iax spec

[Tim Robbins]

> -----Original Message-----
> From: asterisk-dev-bounces at lists.digium.com 
> [mailto:asterisk-dev-bounces at lists.digium.com] On Behalf Of 
> Derek Smithies
> Sent: Wednesday, 4 May 2005 11:29 AM
> To: asterisk-dev at lists.digium.com
> Subject: [Asterisk-Dev] iax spec
> 
> Hi,
> 
>  In the iax spec, can someone tell me what the stop sounds packet is ?
> 
> 
> 
>            |  <=================stop sounds=======  |
> 
> Is it a QUELCH message  ?

A "stop sounds" message is an IAX control frame with subtype 255.

> I did a dump with ethereal of a iax2 call to the server at 
> guest at misery.digium.com/s   
> and did not observe a stop sounds packet betwewen ringing and answer
> 
> Is the stop sounds packet optional ?

Not all versions of Asterisk send it.


Tim