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Resetting Nortel 1120e using CUCM

I have successfully (after 3 days!!!) managed to register a Nortell 1120e with my CUCM (Version

I am able to make calls and use the standard soft keys associated with the Standard sip profile.

The phone itself was set up as a 'Third Party SIP Device Advanced'.

The phone has registered on the correct Vlan and has a good IP address from the Voice scope.

The problem i have at the moment is trying to reset or restart the Nortel phone from call manager. If i make a change and want to reset/restart the phone to pick the changes up, i get no response from the phone.

The Nortel 1120e is currently running SIP firmware version

PS Happy to share the process on how i achieved the registration as it seems to be a common problem.

Kind regards

Chris Mann