[Asterisk-video] chan_sip dumb mode/ passthrough patch?

[Klaus Darilion]

You could make s simple patch for this:

Add the CLEARMODE codec to asterisk (just do all the stuff that is in 
Asterisk for the g729 codec (which is supported in pass-through mode): 
grep for "729" and copy-paste it and change to CLEARMODE).

I think you have to patch app_h324m to set CLEARMODE instead of  ALAW.

regards
klaus



hyrth at web.de schrieb:
> Hi,
> 
> we have a test-account at a VOIP/SIP Provider and would like to make video-calls from and to 3g handsets.
> 
> In the case of incoming 3g video-calls the provider is not demultiplexing the data, he is simply transferring it in CLEARMODE - as explained in RFC 4040 http://tools.ietf.org/rfc/rfc4040.txt  (they have a SIEMENS system there).
> 
> The SDP looks like this:
> ...
> m=audio 18026 RTP/AVP 91 8
> a=rtpmap:91 CLEARMODE/8000
> a=rtpmap:8 PCMA/8000
> ...
> 
> That's actually fine, so h324m_gw could do the demultiplexing.
> The problem is that chan_sip cannot simply transfer the data - it is trying find a transcoder or whatever.
> 
> Does anybody know a patch for chan_sip, so that it simply transfers the rtp packets?
> 
> Best regards,
> 
> Hrvoje
> 
> 
> 
> 
> ____________________________________________________________________
> Psssst! Schon vom neuen WEB.DE MultiMessenger gehört? 
> Der kann`s mit allen: http://www.produkte.web.de/messenger/?did=3123
> 
> 
> _______________________________________________
> --Bandwidth and Colocation Provided by http://www.api-digital.com--
> 
> asterisk-video mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-video