This article will show you the steps needed to:
Reset the 7941 and 7961 IP Phones to the Factory Default
Unplug the power cable from the phone, and then plug in the cable again.
The phone will begin its power up cycle.
Immediately press and hold # and once the Headset, Mute, and Speaker buttons begin to flash in sequence, release the # button.
The line buttons will now flash in sequence in order to indicate that the phone waits for you to enter the key sequence for the reset.
Press 123456789*0# within 60 seconds after the Headset, Mute, and Speaker buttons begin to flash.
If you repeat a key within the sequence, for example, if you press 1223456789*0#, the sequence is still accepted and the phone resets.
If you do not complete this key sequence or do not press any keys, after 60 seconds the Headset, Mute, and Speaker buttons will stop flashing,
and the phone continues with its normal startup process aka the phone does not reset.
If you enter an invalid key sequence, the buttons no longer flash, and the phone continues with its normal startup process.
The phone also does not reset.
If you enter this key sequence correctly, the phone displays this prompt:
Great Success and you are done!
If you are still having issues you may need to buy a new Cisco CP7941G or CP7961G Phone.