Upgrade CM 4.2.3 to 7X

[dvanzee]

Does anyone have step by step document on the correct steps to upgrade CM 4.2.3 to CM7x?

[Rob Huffman · Accepted solution]

Hi Daniel,

This doc has the required steps for this 4.x to 7.x upgrade;

Upgrading to Cisco Unified Communications Manager Release 7.0(1) from Cisco Unified Communications Manager 4.x Releases

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/upgrade/7_0_1/upgrd701.html

Hope this helps!

Rob