the 40 ms latency requirement only applies to communication between CCM nodes. Phones can be further away from the CMs. Also, with newer versions of CM the latency requirement can be as high as 80 ms between nodes depending on the amount of available bandwidth you can dedicate to CM intercluster traffic and DB replication.<br>
<br>perhaps you can reevalute whether you need two clusters?<br><br>have you read the SRND, good place to start for reading about CM design.<br><br><a href="http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/7x/uc7_0.html">http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/7x/uc7_0.html</a><br>
<br><br><br><div class="gmail_quote">On Wed, Nov 12, 2008 at 7:53 AM, Lewis, Chris <span dir="ltr"><<a href="mailto:Chris.Lewis@magnetar.com">Chris.Lewis@magnetar.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial" size="2">I would but the bandwidth requirements are too high - over
the specified 40ms (one way) - hence the need for differing clusters. The
set up you have suggested is what we have already.</font></span></div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial" size="2"></font></span> </div>
<div dir="ltr" align="left"><span><font color="#0000ff" face="Arial" size="2">I have also tried using Hunt groups but they do not work
across clusters either.</font></span></div><br>
<div dir="ltr" align="left" lang="en-us">
<hr>
<font face="Tahoma" size="2"><b>From:</b> Ed Leatherman
[mailto:<a href="mailto:ealeatherman@gmail.com" target="_blank">ealeatherman@gmail.com</a>] <br><b>Sent:</b> 12 November 2008
12:49<br><b>To:</b> Lewis, Chris<br><b>Cc:</b>
<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br><b>Subject:</b> Re: [cisco-voip] Inter Cluster
Shared Lines<br></font><br></div><div><div></div><div class="Wj3C7c">
<div></div>Would it be feasible to register just those phones where that shared
DN needs to appear all on the same cluster?<br><br>
<div class="gmail_quote">On Wed, Nov 12, 2008 at 5:26 AM, Lewis, Chris <span dir="ltr"><<a href="mailto:Chris.Lewis@magnetar.com" target="_blank">Chris.Lewis@magnetar.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div><span><font face="Arial" size="2">Are you able to use shared lines across
clusters on UCM 6.1.2?</font></span></div>
<div><span><font face="Arial" size="2"></font></span> </div>
<div><span><font face="Arial" size="2">IE If I have a Dn 5555 which
rings across multile phones simultaneously wihtin a single cluster at present
(UCM4.1) , if I change to separate clusters (due to location and bandwidth
requirements) when I migrate to UCM 6.1.2 can this still be
achieveable?</font></span></div>
<div><span><font face="Arial" size="2"></font></span> </div>
<div><span><font face="Arial" size="2">If not then does anyone have any
suggestions as to how I can utilise a "hotline"number for all users across
multile clusters?</font></span></div>
<div><span><font face="Arial" size="2"></font></span> </div>
<div><span><font face="Arial" size="2">Thanks</font></span></div>
<div><span><font face="Arial" size="2"></font></span> </div>
<div><span><font face="Arial" size="2">Chris</font></span></div></div></blockquote></div><br>-- <br>Ed
Leatherman<br>Assistant Director, Voice Services<br>West Virginia
University<br>Telecommunications and Network Operations<br>
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