[Freeswitch-users] G.722 negotiation issue with AVM Fritzbox

Brian West brian at freeswitch.org
Fri Jan 20 22:41:59 MSK 2012


Port 0 is absolutely correct its part of SOA and its rejected the media so it sends port 0 to reject it.  Now the payload changing is odd but port zero is def. correct if its rejected.

/b

On Jan 20, 2012, at 12:55 PM, Roland Hänel wrote:

> Hello Brian,
> 
> As I wrote, I was already aware of that. However I think it would make
> sense to improve the handling on the FS side because
> 
>   - the response of FS is clearly faulty, if FS doesn't like the FB offer
> it could reject the call, but sending 200 OK with port 0 is incorrect.
> Especially when the SDP data in debugging is not the same as the data we
> see in the SIP packet
> 
>   - though incorrect, the G722/16000 thing is not uncommon. According to
> some reports I googled Grandstream and others also misbehave in that way.
> Because FS is friendly, I'd suggest to answer the request for G722/16000
> with G722/8000 and everything will probably just work out fine. By the way,
> the debugging output suggests that exactly this was the intent of the
> author - but there seems to be a bug that prevents this SDP from making it
> into the 200 OK packet.
> 
> Roland

-- 
Brian West 
FreeSWITCH Solutions, LLC
Phone: +1 (918) 420-9266 
Fax:   +1 (918) 420-9267
brian at freeswitch.org
http://www.freeswitch.org

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