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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='color:#1F497D'>What protocol are the affected gateways running? Are they running H323? If so, are you using voice class codec with a list of codecs?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'>James Buchanan</span></b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:#7F7F7F'>|</span><b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'> UC Technology Manager </span></b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:#7F7F7F'>|</span><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'> <b>Presidio South </b></span><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:#7F7F7F'>|</span><b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'> Presidio Networked Solutions </span></b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'>12 Cadillac Dr Ste 130 Brentwood, TN 37027 </span></b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:#7F7F7F'>|</span><b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'> </span></b><b><span style='color:#1F497D'><a href="mailto:jbuchanan@presidio.com"><span style='font-size:7.5pt;font-family:"Verdana","sans-serif"'>jbuchanan@presidio.com</span></a></span></b><b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:#548DD4'><o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'>D: 615-866-5729</span></b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'> </span><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:#7F7F7F'>|</span><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:gray'> <b>F:615-866-5781</b> </span><span style='color:#1F497D'><a href="http://www.presidio.com/" title="blocked::http://www.presidio.com/"><b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif"'>www.presidio.com</span></b></a><o:p></o:p></span></p></div><p class=MsoNormal><span style='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>James Dust<br><b>Sent:</b> Monday, April 30, 2012 10:40 AM<br><b>To:</b> cisco-voip@puck.nether.net<br><b>Subject:</b> [cisco-voip] Codec change issue<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p style='margin:0in;margin-bottom:.0001pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>Afternoon All,</span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'> </span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>We have recently changed our<span class=apple-converted-space> </span>codec<span class=apple-converted-space> </span>from G711 to G729 for a handful of our remote branches. We achieved this by changing the region on CUCM and updating our branch voice gateway by applying the preferred<span class=apple-converted-space> </span>codec<span class=apple-converted-space> </span>onto all the relevant dial peers.</span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'> </span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>However, we have had some examples of the following scenario:</span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'> </span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>Calls to an IP phone through a gateway fail when a transfer to another phone is attempted</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>. The user picking up the transferred call receives a busy tone and then the call disconnects.</span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'> </span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>The voice gateway in question shows the incoming call codec as G729 and no errors appear when we apply a debug to the router.</span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'> </span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>Voice Gateway: 2801 (IOS<span class=apple-converted-space> </span>- 12.4T)</span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>CUCM<span class=apple-converted-space> </span>Version: 7.1(3)</span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>7970 phones</span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'> </span><span lang=EN-GB><o:p></o:p></span></p><p style='margin:0in;margin-bottom:.0001pt;orphans:2;widows:2;word-spacing:0px'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#333333'>Has anyone come across this? Would be handy to know before I attempt to setup alerts on RTMT.</span><span lang=EN-GB><o:p></o:p></span></p><p class=MsoNormal style='orphans:2;widows:2;word-spacing:0px'><span lang=EN-GB> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Kind Regards</span><span lang=EN-GB><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><span lang=EN-GB><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>James Dust <br>Team Leader <br>ICT Network Infrastructure & Communications Department <br>Charles Stanley & Co Ltd <br>Tel: 020 7149 6314 <br>Mob: 07989 491136 <br>mailto: <a href="mailto:james.dust@charles-stanley.co.uk">james.dust@charles-stanley.co.uk</a> </span><span lang=EN-GB><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB> <o:p></o:p></span></p></div><p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-GB style='font-size:12.0pt;font-family:"Arial","sans-serif"'><br></span><strong><span lang=EN-GB style='font-size:7.5pt;font-family:"Arial","sans-serif";color:#99CC00'>Consider the environment - Think before you print</span></strong><span lang=EN-GB style='font-size:7.5pt;font-family:"Arial","sans-serif"'><br></span><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br></span><span lang=EN-GB style='font-size:7.5pt;font-family:"Arial","sans-serif"'>The contents of this email are confidential to the intended recipient and may not be disclosed. 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