Skip to main content
CallTower Solutions Center

Cisco - 89XX series phone: Factory reset procedure from key pad

GOAL:

Provide instruction on how to factory reset a 89XX Cisco phone. 

 

RESOLUTION/STEPS:

 

Note: When using a VPN phone please make sure that the phone is behind an ASA or a Managed Circuit before performing a factory reset as doing so can cause the phone to lose VPN functionality.

Instructions

Step 1  Remove power from the phone in one of these ways:

  • Unplug the power adapter.
  • Unplug the LAN cable.

Step 2  Press the pound (#) key and then plug the phone in.

Step 3  When the Headset and Speaker buttons are lit, enter the following key sequence:

123456789*0#

The phone resets.

Factory Reset is complete when the phone comes back up. 

ADDITIONAL INFORMATION:

When using a VPN phone please make sure that the phone is behind an ASA or a Managed Circuit before performing a factory reset as doing so can cause the phone to lose VPN functionality.

COMMON ISSUES:

The pound key needs to be pressed and held before the phone is plugged in. Continue to hold until you see the speaker buttons illuminate.