upgate CUCM from 8.5.1 TO 11.X!

[fly]

Dear Sir/Madam,

        Cu want to upgrade cisco unified communication manager from 8.5.1 to 11.X,　I want to know is there any problem we should avoid?

    such as license, database and configuration transfer to new 11.x version

     we just have only one pub and run on vmware , may be add anthoer sub,

    thank you!

Tom

[Manish Gogna]

Hi Tom,

You can follow the instructions as per the Install and upgrade guide for 11.x

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/upgrade/11_0_1/CUCM_BK_U97537E5_00_upgrade-guide-cucm_1101.html

If you have any queries after going through the guide please let us know.

Manish

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[fly]

Hi,Manish,

    Thank you!

    I will study document.

Best

Tom