[Asterisk-video] [asterisk-video] IAX2 / SIP video call

[Mihai Balea]

I have been out of the loop for some time, but as of a few month ago,  
this would not have been possible.

As you know, you need a patched Asterisk to successfully negotiate  
video with the IAX2 protocol., due to the inherent limitations of the  
protocol.  In addition to that, your SIP endpoint needs to support the  
same type of Theora fragmentation as iaxclient does.  I would assume  
that your SIP endpoint uses the proposed Theora over RTP draft, which  
would make it incompatible with iaxclient.

About a year ago I proposed some enhancements to the IAX protocol to  
better support video fragmentation and better codec negotiation.  The  
level of interest in the Asterisk community was on the low side and I  
assume it will stay low, until somebody actually goes ahead and comes  
up with working code to implement these features

Mihai


On Aug 11, 2008, at 11:53 AM, Paulo Vicentini wrote:

> Hi,
> Is it possible a video call between a SIP endpoint with theora codec  
> support and an IAX2 endpoint (with theora too)?
> Will Asterisk manage SIP / RTP / SDP and IAX2 protocols appropriately?
> Is there support for that?
> I saw posts related to Generic Media Frame Specification / Video  
> codec negotiation in IAX / etc.
>
> Could you tell me the current status of these issues?
>
> Currently I am able to place video (theora) calls using IAXclient  
> endpoints and a patched Asterisk
>
> Thank you
>
> Paulo
>
>
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