<div>I added a MRGL to the both DP's (phones and SIP Trunk) containing MoH, CFB, ANN and MTP. But without any result. I'm running the CUCM in Vmware.. could this have anything to do with the MTP's not be assigned when needed for the DTMF?</div>
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<div>- Paul<br></div>
<div class="gmail_quote">2010/6/1 Jason Aarons (US) <span dir="ltr"><<a href="mailto:jason.aarons@us.didata.com">jason.aarons@us.didata.com</a>></span><br>
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<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Use the CallManager or IOS Software MTP in a MRG/MRGL and assign to Device Pool, etc is what I think others are saying…</span></p>
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<p class="MsoNormal"><b><span style="FONT-SIZE: 10pt">From:</span></b><span style="FONT-SIZE: 10pt"> <a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a> [mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a>] <b>On Behalf Of </b>Paul van den IJssel<br>
<b>Sent:</b> Tuesday, June 01, 2010 4:53 PM<br><b>To:</b> <a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br><b>Subject:</b> Re: [cisco-voip] SIP Trunk for ISP's - DTMF SIP Notify</span></p>
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<p class="MsoNormal">The SIP Trunk is directly connected to the CUCM (7.X). So there is no ISR, or CUBE in between. </p></div>
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<p class="MsoNormal">The System Guide of CUCM 7.X states that only the 7971 7975 support RFC2833. Currently I'm running the test with 7941 and 7961 phones. Also all regions are set to use g.711 and there is no MRGL associated to the Device Pools of the phones and the SIP Trunk.</p>
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<p class="MsoNormal">If I try setting up a call and run the RTMT tool I don't see the CUCM using any MTP's. The SBC which is used isn't a Cisco CUBE.. but I've lost the name, I thought it was a NextTone or something.</p>
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<p class="MsoNormal">2010/6/1 Ryan Ratliff <<a href="mailto:rratliff@cisco.com" target="_blank">rratliff@cisco.com</a>></p>
<p class="MsoNormal">What phones do you have? Most of them do in fact support RFC2833.<br>Additionally, using g.711 for rtp the software MTP resources on your CUCM can convert the dtmf just fine.<br><br>Even if you are using g729 you can use a software MTP on the router acting as your CUBE to do the necessary dtmf conversion which doesn't require any hardware DSPs.<br>
<br>-Ryan</p>
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<p class="MsoNormal"><br>On Jun 1, 2010, at 4:34 PM, Paul van den IJssel wrote:<br><br>> Hi Guys,<br>><br>> Currently I'm testing a SIP Trunk with our ISP. Everything is working fine but I don't get the DTMF to work. This because my SCCP phones only support OOB DTMF. So to get it to work with SIP RFC2833 (in-band) I need an expensive transcoder. But now we've set the SIP Trunk to SIP Notify (out-band) which should work with the IP Phones OOB, but all I get is 'SIP/2.0 403 Forbidden'.<br>
><br>> How do I get this to work without the use of a hardware Transcoder?<br>><br>> Best regards,<br>><br>> Paul van den IJssel<br>> Digacom</p></div></div>
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