Migration to CUCM 7

Unanswered Question
Mar 22nd, 2010

What is the CUCM Upgrade Path to upgrade from 4.1 CUCM to CUCM 7.1?

I have this problem too.
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David Hailey Mon, 03/22/2010 - 08:38

If you have supported hardware, you can migrate directly from 4.1(3) to 7.1 using Data Migration Assistant (DMA).

The easier path; however, is to purchase at least a new Publisher (assuming your other servers can support the software installation to perform as Subscribers).  From there, you would run DMA on your existing 4.1 server and import onto a new Publisher.  This would mean new IP and hostname for the Publisher (which isn't a big deal).  However, you would be able to easily back out given that the old 4.1 Publisher is still in place.  Once the Publisher is in place and you are comfortable, you would ugprade your Subscribers.


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rob.huffman Mon, 03/22/2010 - 08:44

Hi Thomas,

Just to add some reference material to the great tips from my friend Hailey (+5 "H")

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


Gathering Information for an Installation


Here are some other excellent references;

System Installation and Upgrade Manual for IP Telephony Enterprise and Midmarket


Cisco Unified Communications System Documentation


Cisco Unified Communications Compatibility Tool


Hope this helps! And best of luck!



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