Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Upgrade CallManager offline

Dear all,

I want upgrade from cm 4 to cm 6. we have 1 publisher and 1 subscriber.

We had cloned the publisher, and the cloned we used for live production.

Can i upgrade the real publisher without

subscriber connected to publisher network?

Thanks for attention

sorry for my english :)

New Member

Re: Upgrade CallManager offline

Yes,You can upgrade the publisher without subscriber in the network.Even you could do the 'upgrade installation' in a private network and connect the phones and test it.

Then plug the upgraded server to the real network and install the subscriber.


New Member

Re: Upgrade CallManager offline

thanks binu for your answer. :)

there are something problem that make me confused,

i have to install UA(upgrade Assistant), then UA provides the result : database replication failed ,,

its may because the publisher cannot finding the subscriber for database replication.

I have running DMA successfull. If i upgrade to CUCM 6, any problems with occur?

thanks :)


New Member

Re: Upgrade CallManager offline


While running the Upgrade Asst insall and DMA, definitely you need both PUB and SUB in the network.

Then if you have the DMA (successful)tar file,you can start the upgrade installation.

New Member

Re: Upgrade CallManager offline

i see,,

then if we have DMAsuccesfull.tar(UA successfull too),, we can upgrade offline mode, doesn't it ?