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How to Reset Cisco IP Phone 7900 Series to Factory Default

Reset Cisco IP Phone 7900 Series to Factory Default You can perform a reset to factory default of the Cisco 7940, 7941, 7960, 7961 and 7970 IP phones and this is useful for many types of recovery, especially when the phone is so disabled that it cannot enter Network Configuration to reset to factory default.   Complete below steps to reset Cisco IP Phone 7900 series to factory default. 1. Unplug the power cable from the IP phone, and then plug in the cable again. The IP  phone begins its power up cycle. 2. Immediately press and hold # key and while the Headset, Mute, and Speaker buttons begin to flash in sequence, next release # key. 3. Press 123456789*0# within 60 seconds after the Headset, Mute, and Speaker buttons begin to flash. 4. Press 1 to keep network configuration or 2 to lose the network configuration. If you repeat a key within the sequence, […]