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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Actually this is a bug with 15.1. MOH to the PSTN fails unless you ether a) Disable ip cef on the gateway, or b) use Duplex Streaming.<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><div><p class=MsoNormal><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'>James Buchanan </span></b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7E7E7E'>|</span><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'> Technology Manager, UC </span></b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7E7E7E'>|</span><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'> <b>South Region </b></span><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7E7E7E'>|</span><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'> Presidio Networked Solutions <br>12 Cadillac Dr, Suite 130, Brentwood, TN 37027 </span></b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7E7E7E'>|</span><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'> </span></b><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7E7E7E'><a href="mailto:jbuchanan@ctiusa.com">jbuchanan@presidio.com</a><br></span></b><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'>D: 615-866-5729</span></b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'> </span><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7E7E7E'>| <b>F:</b> </span><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'>615-866-5781</span></b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'> | </span><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7E7E7E'><a href="http://www.presidio.com/">www.presidio.com</a></span></b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'>CCIE #25863, Voice</span></b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#1F497D'><br><br></span><b><span style='font-size:7.0pt;font-family:"Verdana","sans-serif";color:#7F7F7F'><o:p></o:p></span></b></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On Behalf Of </b>Jason Aarons (AM)<br><b>Sent:</b> Thursday, April 28, 2011 9:22 AM<br><b>To:</b> cisco-voip (cisco-voip@puck.nether.net)<br><b>Subject:</b> [cisco-voip] Paetec SIP Trunk required Full Duplex Stream for Music on Hold to work<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='color:#1F497D'>This does appear to be a Paetec SIP provider firewall issue that is fixed by setting “Full Duplex Stream” in CCMAdmin > Service Parameters > Advanced Parameters.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Paetec is delivering SIP service inside the MPLS cloud for multiple sites (each site has it’s own CUBE 2951 15.1.3T1, no ip cef) running on centralized CallManager 7.1(5).<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I toggled Full Duplex Stream to False and the far end doesn’t get MoH. Set it to True and it works. Default is False.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Via CallManager packet capture we saw MoH to gateway, at gateway via Embedded Packet Capture we see exported .pcap file showing stream to Paetec IP and heard it playout via Wireshark. Already tried disabling ip cef earlier, but the Full Duplex Stream fixed it. So I’m guessing it’s something with Paetec’s firewall. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div class=MsoNormal align=center style='text-align:center'><hr size=1 width="100%" align=center></div><p><strong><span style='font-size:10.0pt;color:gray'>Disclaimer: This e-mail communication and any attachments may contain confidential and privileged information and is for use by the designated addressee(s) named above only. If you are not the intended addressee, you are hereby notified that you have received this communication in error and that any use or reproduction of this email or its contents is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and deleting it from your computer. Thank you. <o:p></o:p></span></strong></p></div></body></html>