[cisco-voip] Inter Cluster Shared Lines

[Justin Steinberg]

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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