CUCM Switchover

[Utair Corporation]

Hi. I have been replacing one CUCM with completely another, with different IP, completely not related with prevoius one. I have replaced 150 option in DHCP pool with this new CUCM IP. Next i issued a "reset" command on old CUCM, all phones rebooted, having new TFTP in settings, BUT continued registering on old CUCM.

I had to walk over 30 workplaces manually resetting all phones to factory setting, and only after that they had registered on new CUCM.

What i did wrong and how to prevent that behavior in future?

BTW: Same procedure for CME worked just fine.

[ronpatel]

Hi,

While this happens, what does your Ip phone shows in following field

1) TFTP Server 1

2) Unified CM 1

Regards

Ronak Patel

[Utair Corporation]

As i said, phones have correct TFTP 1 setting and INCORRECT CM 1 setting. SEPxxxx.xml.cnf have correct CM inside.

[ronpatel · Accepted solution]

Hi,

Please see if below documnet helps you.

https://supportforums.cisco.com/docs/DOC-15799

Regards

Ronak patel

[Utair Corporation]

Thanks.