CME CUCM interconnection version compatibility

[jlallemand]

Hi Guys,

I have a quick question about CUCM CME version compatibility.

my customer is running today CUCM version 6.1 and a couple of CME 7.1 (on 2800 routers) interconnected with H.323.

Now he wants to upgrade his CUCM to 9.X and asks me what version of CME he needs to install. Of course the idea is to say "the latest".

Now the problem is that 2800 routers only support CME up to version 8.6

Did anybody deploy CUCM with CME without having the same versions?

Thanks

[Anas Abueideh · Accepted solution]

Hi,

CUCM CME interconnection doesn't require compatability since the integration is configured through h323 or sip. there is no need to direct integration.

HTH

Anas

please rate if it is helpful

[jlallemand]

Hi aabueideh,

that was my initial thought, but Cisco PDI told me that their compatibility tool :

http://tools.cisco.com/ITDIT/vtgsca/VTGServlet

said that CME should run version 9.X in order to be compliant with CUCM 9.X

As I did not really agree with this explanation, I opened this discussion.

Do you have a document that confirms your idea?

[paolo bevilacqua]

Anas is correct, and there is no document needed to confirm that, as it is the logical nature of VoIp interwoking. Otherwise one could not  interconnected old and new systems, fortunately that is not the case.

Instead, whatever tool says otherwise should be corrected, and you can ask the matter to be escalated to a true Engineer.

[jlallemand]

Thank you both of you