Reset configuration of Cisco IP Phone (7910, 1911, 7940, 7941, 7960, 7961)
To set the Cisco IP phone to factory default completes the following steps: should be completed:
For 7940, 7941, 7960, 7961 phones:
1. Power up the phone (unplug power cable and plug in again and hold the # key.
2. Release # when lights start flashing.
3. Press 123456789*0#.
4. Press 1 to keep network configuration or 2 to lose the network configuration.
For 7906G and 7911G phones:
1. Power up the phone (unplug power cable and plug in again and hold the # key.
2. Release # when MWI starts flashing.
3. Press 3491672850*#.
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