[Asterisk-video] h324m and SIP

[Sergio Garcia Murillo]

Hi Klaus,

Video from eyebean to 3G is never going to work directly, the bandwith it send is just too high, 
you should use app_transcoder to fix it.

I had no problems with amr conversion at all, is 3g to sip audio working fine?
Could you try stopping video to see if audio get's better?

In the multiplexing h245 and audio should have priority over video.

BR
Sergio

----- Original Message -----
From: Klaus Darilion [mailto:klaus.mailinglists at pernau.at]
To: asterisk-video at lists.digium.com
Sent: Fri, 11 Jan 2008 10:22:51 +0100
Subject: [spam]Re: [Asterisk-video] h324m and SIP

Thanks for all your input: Meanwhile I have manged to run Asterisk 
1.4.17 and rev207.

I test the h324m application bridging to SIP.

My experiences:

3G-->h324m_gw---SIP+GSM--->Cisco-gw--->ISDN: audio is fine
3G-->h324m_gw---SIP+GSM--->eyebeam: audio SIP->3G has drop outs
3G-->h324m_gw---SIP+G711-->eyebeam: audio SIP->3G has many drop outs

Here I suspect maybe some issues with bad conversion to AMR inside 
Asterisk. What results do you have?

Video:
Video from 3G to SIP is working fine (eyebeam).
Video from SIP to 3G is bad - most of the picture is just black. Here I 
suspect maybe a problem if the bandwidth of the video received from SIP 
is to big to fit into the H223 channel.

Sergio - how is multiplexing between Audio and Video handled - das Audio 
have fixed bandwidth or my too big video bandwidth also disturb audio?

Are there somewhere bandwidth statistics in log files from h324m_gw or 
libh324m?

thanks
klaus

Klaus Darilion schrieb:
> Hi!
> 
> Last time I tested h324m_gw with SIP clients audio and video worked fine 
> in both directions (xlite+nokia 6630). This was done with Asterisk 1.4.8 
> and fontventa rev163.
> 
> Now I tried with Asterisk 1.4.17 and fontventa rev207 and audio does not 
> work and video works only from 3G to SIP.
> 
> Using Asterisk 1.4.17 with fontventa rev163 makes video working fine 
> again, but Audio is still broken.
> 
> Thus since Asterisk 1.4.8 something has changed that makes AMR 
> conversion broken and since fontventa rev. 163 something has changed 
> that makes video from SIP->3G broken.
> 
> Now, I want to find out why current versions do not work. Thus, I would 
> be happy if you could tell me which version you use successfully to 
> track down the problem.
> 
> thanks
> Klaus
> 
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