<div dir="ltr">Jonas,<div><br></div><div>Sorry for the late response. In fact I don't rely on Asterisk settings for video codecs, I rather prefer controlling these in specific devices. The reason being that I experienced video codecs priorities were not always respected by client devices. What's even funnier, for GXV3140, if I leave H264 only, I can still receive calls using H263+. Thus I guess the answer to your question is yes. It seems like both Asterisk and those devices are only applying pass-through strategy for video traffic.</div>
<div><br></div><div>When using softpones (Linphone) I can enable H264, H263+ and H263. The preferred codec seems to be used according to this order at handshake time.</div><div><br></div><div>HTH,</div><div><br clear="all">
<div dir="ltr">Alex Saavedra<br></div>
<br><br><div class="gmail_quote">On Fri, Dec 10, 2010 at 3:41 AM, Jonas Kellens <span dir="ltr"><<a href="mailto:jonas.kellens@telenet.be">jonas.kellens@telenet.be</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div text="#000000" bgcolor="#ffffff">
On 12/08/2010 02:48 PM, Alex Saavedra wrote:
<blockquote type="cite">
<div dir="ltr">Jonas,
<div><br>
</div>
<div>I've been using H.264 and H.263+ with a few Grandstream GVX3140.
When using H.264 the image quality was better, and required bandwidth
appeared lower compared with H.263+. In fact H.264 is expected to
consume less bandwidth for as much as 50% (according to Wikipedia).
Note however that when configuring bandwidth limits inside Asterisk
(maxcallbitrate directive) I saw no effect on client devices. Only
client configuration succeeded (v 1.6.2.7 here).</div>
<div><br>
</div>
<div>I kept H.263+ only for compatibility reasons when using X-Lite
softphone (no support for H.264). </div>
<div><br>
</div>
<div>Regards,<br>
<div><br clear="all">
<div dir="ltr">Alex Saavedra<br>
</div>
</div>
</div>
</div>
</blockquote>
<br>
Do you use H263 and H264 together on a peer ?<br>
<br>
Because when I define :<br>
<br>
allow=h263<br>
allow=h264<br>
<br>
there is no video.<br>
<br>
I can only allow 1 video-codec on a peer...<br>
<br>
Jonas.<br>
</div>
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