Migrate from 3.3 to 6.x

microtel · ‎12-14-2007

Hello

Please can u help how to restore the backup did on call manager 3.3 by BAT to call manager v6 using DRS

Thanks all

smahbub · ‎12-21-2007

It's not supported and it takes some effort as well as the schemes have changed. You will probably need to use a new server anyways since 3.1.2 is so old I doubt that hardware is compatible with CCM 5/6.

microtel · ‎12-22-2007

Yes i will use a new server of course but my question is how to recover configurations (phones,gw, dial plan..) from CM 3.3 server to 6.x Server

Thanks

cevala · ‎12-28-2007

Hi,

You'll have to restore your DB on an exact version 3.3 of your old configuration (possibly first on older hardware too..upgrades are always a joy).

Then, upgrade that in steps to 4.x, and then go to 6.

Have a search on CCM for the CallManager compatibility matrix to prepare a good upgrade plan.

Good luck!

CÃ©dric

kinwai · ‎12-28-2007

You can't restore it directly due to the different scheme used (different database).

The way i did was 3.3 to upgrade 4.x, 4.x to 6

The company need to purchase the upgrade license for 4.x , 6.x.

I did 4.x export to 6 version using DMA tools in lab environment. It will give you a "DMA.tar" file.

The "DMA.tar" file must be there during installation stage for CUCM 6 when prompt to, you can't restore it later after the CUCM 6 is up.