How to Reset a Cisco Phone

Occasionally you may need to restart or power-cycle a Cisco desk phone to get it operational again. This is very easy to do.

 Instructions

1. Turn the phone over and look for the three RJ-45 network jacks on the left side of the phone.

2. One connects to the NAM and the other provides pass-through network connectivity to your computer. Ignore the jack labeled Aux.

3. Disconnect the jack on the left, the one with the ethernet symbol above it: . Leave the cable disconnected for 5 seconds. This is port 2 in the image below:
   
   

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4. Plug the cable back in and you’ll see the Cisco logo on the display, indicating the phone is restartarting.

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