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</o:shapelayout></xml><![endif]--></head><body lang=EN-IE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thank very much Carlo….think I’ll try the SIP trunk and see how I go. I’ll reply to this and let all know whether the CUEAC BLF works between clusters as expected<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'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Carlo Calabrese [mailto:carlo_calabrese2006@yahoo.com] <br><b>Sent:</b> 12 July 2013 19:43<br><b>To:</b> Russell Chaseling; 'Erick Wellnitz'<br><b>Cc:</b> 'Ryan Ratliff'; 'Cisco-voip'<br><b>Subject:</b> RE: [cisco-voip] SIP between CUCM clusters<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>I only noticed it for endpoints. Don’t think we had any problems with gateways. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>For PSTN I have as SIP. ICT which are H323 based and I have several MGCP QSIG trunks<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>So my path is<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>PSTN -> SIP -> CUCM -> ICT -> CUCM -> QSIG -> PBX<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I haven’t had a problem with the QSIG gateway only phones when one is a SIP and the other is SCCP.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>When we started having problems, most of the complaints were about dropped calls or not hearing the other end. Found that the call would connect but the RTP path would not get built.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US 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 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Russell Chaseling [<a href="mailto:rchaseling@plannet21.ie">mailto:rchaseling@plannet21.ie</a>] <br><b>Sent:</b> Friday, July 12, 2013 9:33 AM<br><b>To:</b> Carlo Calabrese; 'Erick Wellnitz'<br><b>Cc:</b> 'Ryan Ratliff'; 'Cisco-voip'<br><b>Subject:</b> RE: [cisco-voip] SIP between CUCM clusters<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Excellent tips. Thanks guys<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'>When you say SIP to H323 back to SIP are you talking about endpoints? My other concern is that one of these CUCM clusters already has a H323 ICT to a 3<sup>rd</sup> 8.X cluster. Calls need to be able to traverse through all of them but presence only shared between the 1<sup>st</sup> two and there are MGCP QSIG and H323 ISDN gateways hanging off all of them – I suspect I will run into more problems that will out way any possible benefits like presence sharing.<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'><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><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>for the simple reason that I believe that presence status can be shared between the two ie IP Phone BLF and CUEAC BLF (particularly CUEAC BLF)</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>1)</span><span style='font-size:7.0pt;color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>First questions is have I heard this right? Will BLF work between 2 x CUCM clusters? </span><o:p></o:p></p><p><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2)</span><span style='font-size:7.0pt;color:#1F497D'> </span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Has anyone deployed SIP trunks between clusters in production? If so is it worth the pain?</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Cheers</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Russell</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><span lang=EN-US><o:p></o:p></span></p></div></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></div></body></html>