Run CUCM 7.1 as SUBS

[Junior Mateus]

Hi EveryBody,

I have a CCM Pub running on 7.1.5 and  i recently get second CCM already configured as SUBS but on version 7.1.3

I have 3 Questions :

1.Is it possible to built a cluster with the 2 CCM ?, knowing that it´s running on different version  ?

2.If the first question is yes,How can i erase all config on the CCM SUBS and add it to the cluster, knowing that it coming with database copy of a past PUB

3.Adding the SUBS to the Cluster require a additional License on  SUBS ?

Again thank you  in advance

[Jaime Valencia · Accepted solution]

That's impossible, all servers in the cluster MUST run the same CUCM version.

You would need to install the other server as a SUB for the 7.1.5 PUB by reinstalling it with the 7.1.5 release, there's no way to just connect over to a PUB from another cluster, all the necessary agreements are done upon installation.

Yes, on that release you do need a node license.

[Junior Mateus]

Again Thank you for you response 

Please do you know how can i upgrade the version 7.1.3 to 7.1.5 ?

[Jaime Valencia]

Just get the upgrade image and run thru the upgrade wizard of CUCM.