Power cycle with the approval of your System Administrator only when a reset does not resolve the problem. Use the power cycle only if the basic or programmed reset procedure cannot be performed or does not correct the problem.
Procedure
Unplug the telephone and plug it back in.
The telephone connection re-establishes.
If power-cycling does not correct the problem, perform a more severe power cycle routine by unplugging both the telephone and the Ethernet cables.
Note:
This type of power cycle involves reprogramming certain values so it should only be performed by your System Administrator.
