What G729 module are you using, and what codec is in use on the other leg?<div><br></div><div>G729 needs licenses due to patents.</div><div><br></div><div>mod_g729 is passthrough only but requires no licenses. This is because it merely forwards the data, but doesn&#39;t perform the encoding/transcoding step that the patents cover. But that means it can&#39;t transcode between different codecs.</div>

<div>mod_com_g729 is the licensed version: <a href="http://www.freeswitch.org/node/235">http://www.freeswitch.org/node/235</a></div><div><br></div><div>With the passthrough mod_g729 codec, if the other leg has selected a codec other than g729 you&#39;ll see an error in your logs and it&#39;ll hangup with that reason.</div>

<div><br></div><div>You can tweak your codec negotiation to avoid this (eg late-negotiation=true), or you can use the licensed version.</div><div><br></div><div><br></div><div><br><br><div class="gmail_quote">On 16 December 2012 11:40, Balamurugan Mahendran <span dir="ltr">&lt;<a href="mailto:b2m@a-cti.com" target="_blank">b2m@a-cti.com</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Need help on Codec Negotiation <br clear="all"><div><div><br></div><div><br></div><div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare <b>[G729:0:8000:20:64000]/[G729:18:8000:20:8000]</b></div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[SILK:117:8000:20:20000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[SILK:118:12000:20:25000]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[SILK:119:16000:20:30000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[SILK:120:24000:20:40000]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[G7221:115:32000:20:48000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[G7221:107:16000:20:32000]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[G722:9:8000:20:64000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[PCMU:0:8000:20:64000]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[PCMA:8:8000:20:64000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [G729:0:8000:20:64000]/[GSM:3:8000:20:13200]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[G729:18:8000:20:8000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[SILK:117:8000:20:20000]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[SILK:118:12000:20:25000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[SILK:119:16000:20:30000]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[SILK:120:24000:20:40000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[G7221:115:32000:20:48000]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[G7221:107:16000:20:32000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[G722:9:8000:20:64000]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[PCMU:0:8000:20:64000]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[PCMA:8:8000:20:64000]</div>



<div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4798 Audio Codec Compare [telephone-event:101:8000:20:0]/[GSM:3:8000:20:13200]</div><div>2012-12-16 11:35:52.246422 [DEBUG] sofia_glue.c:4919 Set 2833 dtmf send/recv payload to 101</div>



</div><div><br></div><div><br></div><div><div>2012-12-16 11:35:52.246422 [DEBUG] switch_channel.c:2852 (sofia/internal/<a href="mailto:501@50.54.12.39" target="_blank">501@50.54.12.39</a>) Callstate Change DOWN -&gt; HANGUP</div>

<div>2012-12-16 11:35:52.246422 [NOTICE] sofia.c:5781 Hangup sofia/internal/<a href="mailto:501@50.54.12.39" target="_blank">501@50.54.12.39</a> [CS_NEW] <b>[INCOMPATIBLE_DESTINATION]</b></div>

</div><div><br></div><div>Thanks,</div><div>Bala</div><div><br></div></div>
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