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List:       asterisk-video
Subject:    Re: [Asterisk-video] [asterisk-video] IAX2 / SIP video call
From:       "Paulo Vicentini" <vicentini.paulo () gmail ! com>
Date:       2008-08-12 18:33:09
Message-ID: 4b9599930808121133x7e63018dx2341ee86c27b2ed5 () mail ! gmail ! com
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Could you provide the documents describing those enhancements to the IAX2
protocol?
Do those enhancements to iax2 deal with Theora over RTP draft issues ?

thanks
Paulo

On Mon, Aug 11, 2008 at 5:02 PM, Mihai Balea <mihai@hates.ms> wrote:

> 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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>
>
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[Attachment #5 (text/html)]

<div dir="ltr"><div class="western" style="MARGIN-BOTTOM: 0cm"><span \
lang="en-US">Could you provide the documents describing those enhancements to the \
IAX2 protocol</span>?</div> <div class="western" style="MARGIN-BOTTOM: 0cm">Do those \
enhancements to iax2 deal with Theora over RTP draft issues ?</div> <div \
class="western" style="MARGIN-BOTTOM: 0cm">&nbsp;</div> <div class="western" \
style="MARGIN-BOTTOM: 0cm">thanks</div> <div class="western" style="MARGIN-BOTTOM: \
0cm">Paulo<br><br></div> <div class="gmail_quote">On Mon, Aug 11, 2008 at 5:02 PM, \
Mihai Balea <span dir="ltr">&lt;<a href="mailto:mihai@hates.ms" \
target="_blank">mihai@hates.ms</a>&gt;</span> wrote:<br> <blockquote \
class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: \
#ccc 1px solid">I have been out of the loop for some time, but as of a few month \
ago,<br>this would not have been possible.<br> <br>As you know, you need a patched \
Asterisk to successfully negotiate<br>video with the IAX2 protocol., due to the \
inherent limitations of the<br>protocol. &nbsp;In addition to that, your SIP endpoint \
needs to support the<br> same type of Theora fragmentation as iaxclient does. &nbsp;I \
would assume<br>that your SIP endpoint uses the proposed Theora over RTP draft, \
which<br>would make it incompatible with iaxclient.<br><br>About a year ago I \
proposed some enhancements to the IAX protocol to<br> better support video \
fragmentation and better codec negotiation. &nbsp;The<br>level of interest in the \
Asterisk community was on the low side and I<br>assume it will stay low, until \
somebody actually goes ahead and comes<br>up with working code to implement these \
features<br> <br>Mihai<br>
<div>
<div></div>
<div><br><br>On Aug 11, 2008, at 11:53 AM, Paulo Vicentini wrote:<br><br>&gt; \
Hi,<br>&gt; Is it possible a video call between a SIP endpoint with theora \
codec<br>&gt; support and an IAX2 endpoint (with theora too)?<br>&gt; Will Asterisk \
manage SIP / RTP / SDP and IAX2 protocols appropriately?<br> &gt; Is there support \
for that?<br>&gt; I saw posts related to Generic Media Frame Specification / \
Video<br>&gt; codec negotiation in IAX / etc.<br>&gt;<br>&gt; Could you tell me the \
current status of these issues?<br>&gt;<br> &gt; Currently I am able to place video \
(theora) calls using IAXclient<br>&gt; endpoints and a patched \
Asterisk<br>&gt;<br>&gt; Thank you<br>&gt;<br>&gt; \
Paulo<br>&gt;<br>&gt;<br></div></div>&gt; \
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Provided by <a href="http://www.api-digital.com--/" \
target="_blank">http://www.api-digital.com--</a><br>&gt;<br>&gt; asterisk-video \
mailing list<br>&gt; To UNSUBSCRIBE or update options visit:<br> &gt; &nbsp; <a \
href="http://lists.digium.com/mailman/listinfo/asterisk-video" \
target="_blank">http://lists.digium.com/mailman/listinfo/asterisk-video</a><br><br><br>_______________________________________________<br>--Bandwidth \
and Colocation Provided by <a href="http://www.api-digital.com--/" \
target="_blank">http://www.api-digital.com--</a><br> <br>asterisk-video mailing \
list<br>To UNSUBSCRIBE or update options visit:<br>&nbsp; <a \
href="http://lists.digium.com/mailman/listinfo/asterisk-video" \
target="_blank">http://lists.digium.com/mailman/listinfo/asterisk-video</a><br> \
</blockquote></div><br></div>



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