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IOS and CME version upgrade

I have 2851 router running IOS 12.x and CME 4.1. I want to upgrade CME/CUE to version 8.6. However, since it is a running system, I want to be very certain before I want do it. So my questions are:

1. Do I have to have the new licenses (feature) for CME? I heard that IOS 15.x and above requires licenses.

2. What will happen to the existing mailboxes in the CUE after the upgrade? Do I loose them or is there any wayt to retain them?

3. What happens to the licenses for CUE and VMPort?

4. Is there direct upgrade from IOS 12.2 to 15.2?

5. Is there direct upgrade from CUE 3.x to 8.6?

If someone could help me with those answers, that would make my life easier.

Thanks, BK

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Green

IOS and CME version upgrade

Hi,

Here is the link to the CME SW compatability matrix

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/requirements/guide/33matrix.htm

This should answer some of your points

Regards,
Alex.
Please rate useful posts.

Regards, Alex. Please rate useful posts.
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