Call Manager 3.3 Cluster Size

[8r-schumann]

I am looking for the maximum number of servers that a single Call Manager cluster running 3.3 will support.

[sdrennan]

You are allowed up to 8 with the Call manager service enabled plus publisher/TFTP etc

[8r-schumann]

Thanks, so it is the same as 3.2. I was not sure if CCM 3.3 increased the size of the cluster or not.

[mowour]

With CallManager 3.3 and the MCS 7845, this model can support up to 30,000 users. The number of servers increases to ten with a 1:1 redundancy design.

Such a cluster would be comprised of:

1 standalone Publisher

1 Standalone TFTP server

4 Primary CallManagers (7,500 users per server)

4 Backup CallManagers

Regards.