[cisco-voip] Inter Cluster Shared Lines

[Lewis, Chris]

I did state 40ms one way and do know the contraints I have.
 
I have been through the SRND (version 6) also.
 
If I am trying to go for full redundancy then I will need separate
clusters due to the bandwidth contraints.
 
Thanks for the help on this
 
 

________________________________

From: Justin Steinberg [mailto:jsteinberg at gmail.com] 
Sent: 12 November 2008 14:12
To: Lewis, Chris
Cc: Ed Leatherman; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Inter Cluster Shared Lines


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.

perhaps you can reevalute whether you need two clusters?

have you read the SRND, good place to start for reading about CM design.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/7x/uc7_0.html




On Wed, Nov 12, 2008 at 7:53 AM, Lewis, Chris <Chris.Lewis at magnetar.com>
wrote:


	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.
	 
	I have also tried using Hunt groups but they do not work across
clusters either.

________________________________

	From: Ed Leatherman [mailto:ealeatherman at gmail.com] 
	Sent: 12 November 2008 12:49
	To: Lewis, Chris
	Cc: cisco-voip at puck.nether.net
	Subject: Re: [cisco-voip] Inter Cluster Shared Lines
	
	
	Would it be feasible to register just those phones where that
shared DN needs to appear all on the same cluster?
	
	
	On Wed, Nov 12, 2008 at 5:26 AM, Lewis, Chris
<Chris.Lewis at magnetar.com> wrote:
	

		Are you able to use shared lines across clusters on UCM
6.1.2?
		 
		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?
		 
		If not then does anyone have any suggestions as to how I
can utilise a "hotline"number for all users across multile clusters?
		 
		Thanks
		 
		Chris


	-- 
	Ed Leatherman
	Assistant Director, Voice Services
	West Virginia University
	Telecommunications and Network Operations
	

	

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