Version Mismatch

[deanofmac]

Greetings,

I'm new to Unified Communications. I was asked to upgrade our CUCM to 9.1 from 8.03 and to leave our CCX at 8.x.  Is that possible?  I have no issues upgrading to 9.1 but will the system work if CCX remains at 8.x?

Thanks for any assistance!

[Dragan Ilic · Accepted solution]

According to this link:

http://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_compatibility/matrix/crscomtx.pdf

As long as you are on minimum UCCX 8.5(1) SU3 you are fine and can go with CM 9.1...

HTH,

Dragan