Registration Rejected

[a.saad@growup-ts.com]

I installed CUCM version 12.5 with evaluation license for 90 days and I have about 90 cisco phone 7841 registered.

The evaluation period has been finished and I can't edit or add configuration, I know that is normal.

I exported phone configuration and reinstalled a new copy from the virtual CUCM again, then inserted phone configuration to the cucm.

All phone is rejected due to InitializationError , I factory reset the phone but now it shows "press select key to change service mode"

I reset the service mode also with no registration attempt detected on cucm

[collinks2]

I have encountered this error " Registration rejected" before .I did a
factory reset and the phone registered to cucm.
I would advise you set up one phone manually and not th bulk upload .
Confirm if the phone can register to cucm.

[a.saad@growup-ts.com]

I did already, the phone give us a message after reset "press select key to change service mode, otherwise the device will continue to register"

No traffic shown on CUCM

there is connectivity between phone and CUCM

[Roger Kallberg]

Do your phones get option 150 set by the DHCP scope that points to your TFTP server on the new CM?

[a.saad@growup-ts.com]

Yes, it has IP address and TFTP from DHCP

[Stephanie Knoop]

When you exported your phones from the old system, did you use "all details"?

When you look at the configuration of the phone in CUCM, does it have a primary DN?

If you look at the phone settings>admin>status>messages, do you see anything helpful in the log?

[a.saad@growup-ts.com · Accepted solution]

Thanks Guys, the problem fixed after resetting security service on all phones