I have customer who is on CM 3.3 and IPCC 3.1. I plan to upgrade them to CM4.2 and IPCC 4.0. Is there a better choise out there?
My suggestion would be to upgrade them to CM 5.1.2b (you will first need to upgrade to CM 4.1) and UCCX 4.5.2sr2 or 5.0.1 which proves to be stable as well.
We have a lot of stable deployments of CUCM 5.1 with UCCX 4.5, and some UCCX 5.0.
If they are on 3.3, I think you have to go to 4.0 maximum anyway.
CCM 4.2 and IPCC 4.2 will work fine. However, as far as how far I have gone, I am running IPCC 5.0 on CCM 5.1.2 and it is running like a champ.
But I would take baby steps for now....but that is just me:)
There is no IPCC 4.2 as far as I know, there is 4.1 which is besically 4.0 running on win 2003 server as oppose to 2000.