Klaus,<br><br>I don't use a SIP phone.<br>I'm working with a Dilithium 3G gateway and some other system that provides video content (and speaks amr).<br>AMR supporting SIP phones are indeed hard to find, especially in OSS, because of licensing restrictions.
<br><br>For the record, I know there's a licensing issue with amr that needs to be handled.<br>It's also the main reason why this codec is not in the asterisk package (yet).<br>But in my opinion, since VoiceAge provides an amr implementation for free to be used in research and development (
<a href="http://www.voiceage.com/freecodecs.php">http://www.voiceage.com/freecodecs.php</a>), we could at least try to make it work in asterisk.<br><br>For those who are wondering, here are the licensing terms for amr-nb:
<a href="http://www.voiceage.com/amr_licterms.php">http://www.voiceage.com/amr_licterms.php</a><br>I guess the biggest problem is the initial fee of $6.500. Or am I missing something else?<br><br>Have to go ... we'll get on with this later
<br><br>Ciao,<br><br>Koen<br><br><br><br><br><div><span class="gmail_quote">On 7/26/07, <b class="gmail_sendername">Klaus Darilion</b> <<a href="mailto:klaus.mailinglists@pernau.at">klaus.mailinglists@pernau.at</a>> wrote:
</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br><br>Koen Van Impe wrote:<br>> Hi Matteo,<br>><br>> I recognize all your questions.
<br>> I've been playing with asterisk for over a year now, but only needed video<br>> and AMR support since a few months.<br>><br>> Have tried to implement the amr codec as described by Paul (<br>> <a href="http://lists.digium.com/pipermail/asterisk-dev/2007-March/026446.html">
http://lists.digium.com/pipermail/asterisk-dev/2007-March/026446.html</a>)<br>> All compiles well, but I don't get it to transcode. AMR in pass through<br>> does<br>> work with this patch.<br><br>Hi Koen!<br>
<br>Which SIP client do you use? Or asked in another way - which SIP client<br>does support AMR?<br><br>> Does your implementation of AMR on version 1.4.9 work? Does it transcode to<br>> g711 for instance?<br>> If so, could you maybe make a patch of this (using 'svn diff')?
<br>><br>> And there's also the issue of H263-2000 (aka H263++). As it is, * doesn't<br>> understand this codec in your sdp's.<br>> Would it be a lot of work to add this? Even only in pass through?
<br>><br>> Looking forward to putting our experience together...<br><br>me too<br><br>regards<br>klaus<br><br>_______________________________________________<br>--Bandwidth and Colocation Provided by <a href="http://www.api-digital.com--">
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