[cisco-voip] Call Manager Groups

[steve.siltman at assurant.com]

I'm having a heck of a time with a conferencing issue and I want to know 
if I'm losing it.

Call Manager Groups purpose is to provide devices a server to register too 
and a couple of backups in case of failure.   We use them to limit the 
number of devices that are registered to any one server and can configure 
them in such a way to handle server outages or maintenance windows. 

I've got  a crazy issue with one location not being able to use its media 
resources effectively.  Namely conferencing.  If I change a location to 
use a certain server, they lose the ability to conference.  In the 
serviceability pages, the service activations and control panel services 
are identical to the others.  I've restarted services and finally rebooted 
the server with no change in my testing.  I've finally opened a ticket 
with TAC but I wanted too post this here in hopes that someone can confirm 
that I'm not going crazy.

If a CMG contains 3 servers and a software media resource it needs is 
registered to another server, can the devices in this CMG use that 
software media resource?  Just checking, its not the case here but I 
wanted ot know if the CMG plays a role like this.
Same goes with MOH, if my MOH server is registered to a server thats not 
in the CMG that these devices use, can those devices still access that MOH 
server?  Just wondering if CMG's play a larger role than I originally 
thought.

Thanks,

Steve Siltman
Assurant Corporate Technology
Senior Network Engineer - Cisco CCVP
Work: 651-361-4752
Cell: 651-336-5563
steve.siltman at assurant.com

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