[cisco-voip] Multiple Clusters

[Chris Ward (chrward)]

 Let me start by saying I am not a Unity "expert", but from what I have
done and seen in Unity this would work just fine. If the extensions
aren't going to change from Cluster-Old to Cluster-New, once the phone
is migrated, VM for that user should function just the same. No change
needed in Unity. This is because, no matter which set of ports the call
enters Unity on (Old or New), the redirecting party should not change,
meaning it should hit the same mailbox.

 

Now that's in theory. I welcome someone who has actually tried this or
knows a "gotcha" to contribute.

 

-Chris

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Kevin Dunn
Sent: Thursday, August 20, 2009 9:42 AM
To: Cisco Voice
Subject: [cisco-voip] Multiple Clusters

 

Okay so I have migrated my CCM 4.1.3 to CUCM 7.0.2 and finally got teh
licenses to move onto the new hardware, so I have my old production
Cluster (4.1.3) and the new shiny toy (7.0.2) which is in my lab, but
only one Unity server. 

 

Since I migrated the old CCM to 7.0.2 I had to change Name and IP on the
system to ensure I didn't cause any conflicts.

 

Is it possible to run both clusters on on Unity server?

 

My concern is that both clusters have the same exact extensions and
locations...

 

So when I move extension 8801 from Cluster_Old to Cluster_New the
gateways (H323) are still there, and an inter-cluster trunk keeps the
calls a flowing.  Will Mailbox 8801 be accessible after this move?

 

My hope is that I can run two Call Managers on one Unity server.  What
sort of issues can I expect with this line of thought?

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