Telephone Management and Troubleshooting
Power Cycling the Phone
Use the power cycle with your System Administrator’s approval. Use power cycling only if the basic or programmed reset procedure cannot be performed or does not correct the problem:
1.Unplug the phone and plug it back in. The phone connection is
2.If
! WARNING:
Because the type of power cycle mentioned in Step 2 involves reprogramming certain values, Step 2 should only be performed by your System Administrator.
86 4620/4620SW/4621SW IP Telephone User Guide