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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Sam,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Do you need to transcode on the Cisco? (i.e. aren’t both endpoints supporting the same set of codecs?)
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">You need to ensure, that if you use a codec list on one call-leg (dial-peer) you support the same on the other call-leg (or outbound dial-peer) as well.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Trying transparent codec on dial-peers may also work.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">For transcoding you’ll need DSCP resources and some configuration:<br>
<a href="http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/configuration/cube-book/transcoding.html">http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/configuration/cube-book/transcoding.html</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Arial","sans-serif";color:#0F245F">Zoltan Kelemen</span></b><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#0F245F"><br>
</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#666666">Emerson</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> cisco-voip [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>s m<br>
<b>Sent:</b> 02 April 2015 12:08<br>
<b>To:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> [cisco-voip] sip trunk to asterisk<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">hello everybody,<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">i want to configure a sip trunk between a cisco router and my system which has asterisk. this is my scenario:<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">Freepbx-----my system-----cisco-router----Freepbx<o:p></o:p></p>
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<p class="MsoNormal">my system acts like a router. in cisco, if i set just one codec in dial-peers, every thing is ok and i can make a call. but if i set different codecs in a voice class codec and assign it to dial-peers, i can make call but call is terminated.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">i trace all debug messages in cisco and think it is happened when receiving call has a codec which differs with first codec priority in cisco router because my cisco router can not transcode these codecs to
each other. am i right or misunderstand?? if it is true, how can i enable transcoding on my cisco router? i have a 2800 router.<o:p></o:p></p>
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<p class="MsoNormal">any comments ot hints are really appreciated.<o:p></o:p></p>
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<p class="MsoNormal">SAM<o:p></o:p></p>
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