<div>so based on that link</div>
<div> </div>
<div>"
<h3 class="p_H_Head2">Distributed Multisite Deployments </h3><a name="wp1043936"></a>
<p class="pB1_Body1">Multisite IP telephony deployments with distributed call processing typically contain WAN or MAN connections between the sites. These lower-speed links usually cause bandwidth and throughput bottlenecks. To minimize bandwidth consumption on these links, Cisco recommends use of the G.729 codec for all MoH audio streams traversing them. Because the G.729 codec is optimized for voice and not music applications, you should use G.729 only across the WAN/MAN links, where the bandwidth savings far outweighs the lower quality afforded by G.729 for MoH transport. </p>
<a name="wp1044670"></a>
<p class="pB1_Body1">Unlike with centralized multisite deployments, in situations where G.711 might be required for MoH audio streams traveling across a WAN, MoH audio streams cannot be forced to G.711 in a distributed multisite deployment. Even when MoH servers are placed in a separate Unified CM region and the G.711 codec is configured between this region and the intercluster or SIP trunk's region, the codec of the original voice call is maintained when a call between the two clusters is placed on hold by either phone. Because these intercluster calls are typically encoded using G.729 for bandwidth savings, a MoH stream from either cluster will also be encoded using G.729. </p>
<a name="wp1043937"></a>
<p class="pB1_Body1">Furthermore, multicast MoH is not supported for calls between Unified CM clusters (intercluster calls). Therefore, you must configure at least one unicast MoH resource in each Unified CM cluster if you want MoH on the intercluster or SIP trunk. </p>
<a name="wp1043938"></a>
<p class="pB1_Body1">Proper multicast address management is another important design consideration in the distributed intercluster environment. All MoH audio source multicast addresses must be unique across all Unified CM clusters in the deployment to prevent possible overlap of streaming resources throughout the distributed network. "</p>
<p class="pB1_Body1"> </p>
<p class="pB1_Body1"><strong>it just looks like you need a Unicast resource for the ICT.</strong></p>
<p class="pB1_Body1"> </p>
<p class="pB1_Body1">Scott<br><br></p></div>
<div class="gmail_quote">On Fri, Feb 15, 2008 at 10:13 AM, Eric Pedersen <<a href="mailto:eric.pedersen@sait.ca">eric.pedersen@sait.ca</a>> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div lang="EN-CA" vlink="purple" link="blue">
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<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">According to the ucm 5.x srnd, multicast MoH is not supported across an intercluster trunk. Check out:</span></font></p>
<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><a href="http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/5x/50moh.html" target="_blank">http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/5x/50moh.html</a></span></font></p>
<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> </span></font></p>
<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> </span></font></p>
<div>
<div style="TEXT-ALIGN: center" align="center"><font face="Times New Roman" size="3"><span lang="EN-US" style="FONT-SIZE: 12pt">
<hr align="center" width="100%" size="3">
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<p><b><font face="Tahoma" size="2"><span lang="EN-US" style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</span></font></b><font face="Tahoma" size="2"><span lang="EN-US" style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> <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><span style="FONT-WEIGHT: bold">On Behalf Of </span></b>Dana Tong (AU)<br>
<b><span style="FONT-WEIGHT: bold">Sent:</span></b> February 14, 2008 19:05<br><b><span style="FONT-WEIGHT: bold">To:</span></b> <a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br>
<b><span style="FONT-WEIGHT: bold">Subject:</span></b> [cisco-voip] MOH not working between clusters</span></font><font face="Times New Roman" size="3"><span lang="EN-US" style="FONT-SIZE: 12pt"></span></font></p></div>
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<div></div>
<div class="Wj3C7c">
<p><font face="Calibri" size="2"><span style="FONT-SIZE: 11pt"> </span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt">Hi everyone,</span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt"> </span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt">I have a problem with Music on Hold between two CM clusters. One cluster is running CM4 and the other UCM5.1.3.1000-12.</span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt">Music on Hold out to the PSTN works fine but not between the two clusters. Phones in the UCM5 cluster hear MOH ok also. </span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt"> </span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt">Testing shows that the remote addresses change to the multicast MOH address but only silence is heard. </span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt"> </span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt">Does anyone have any tips to look for with MOH over an intercluster trunk?</span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt"> </span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt">Cheers</span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt">D</span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt"> </span></font></p>
<p><font face="Calibri" size="2"><span lang="EN-AU" style="FONT-SIZE: 11pt"> </span></font></p>
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