Call Manager / Unity migration

[nathangroff]

I have a few problems with Call Manager and Unity. I am in the process of upgrading both hardware and software on an existing Call Manager / Unity system. Here is a few items that I have had some problems with. Any assistance is greatly appreciated.

1) While the phones are registered with the new Call Manager, I can not look up people in the directory or look at the services without providing a username and password. This was not true with the old CCM. Anyone know where this setting is located?

2) While attempting to move a test user in unity, I am unable to see users that have voice mail set up on the other Unity server. I am attempting to move everyone with minimal impact to the users but its seeming less possible. I have seen some instructions from Cisco, but they all seem to require upgrading the old Unity server to the current shipping version. is there any way of not going through all of that hassle?

 

[pndscm]

The easiset way I have found to do this is:

CCM - Build new server on same version as old server, IP and everything. Then put on the latest supported version of Backup available for the old server. Run Backup from old server, restore to new server, then upgrade new server.
Unity - Same thing, build new server as same version as old server, run DiRT BackUp on old server and DiRT Restore to new server, then upgrade.

Impact to users is minimal as all it requires is time to swap network cables from old servers to new servers. Downtime for CCM is the time it will take all your phones to upgrade to new phone loads and re-register, Unity downtime is how long it takes Unity to re-register ports in CCM. Once the new servers are up and running, do tests to insure everything is OK. If you have any major problems that can't be resolved quickly, swap the cables back to the old servers and troubleshoot the new server off-line.