we have cluster with 8 CUCM servers (publisher + 7 subscribers). We would like to add Cisco IM & Presence as new feature.
Can we install Cisco presence during working hours? Do we have to expect some impact to current IP telephony?
Since the IM&P node needs to be added on CUCM under System > Server before you install it, you should take into consideration the following from the IM&P install guide
"After you install a new node in an existing cluster, all phones that are registered to the cluster are reset."
I am sure about this happening with CUCM nodes, haven't got a chance to test it with IM&P but it is not mentioned that this is only applicable to CUCM nodes.
My suggestion is to go ahead with the IM&P Publisher deployment during a maintenance window if you don't have a confirmation about this behavior via TAC or your Cisco Account team.
- Do rate helpful posts -