2 ways to Reset Cisco 8841/8851 VoIP phones to Factory

Resetting A Cisco Phone. hard reset cisco IP phone YouTube When the Mute button light and handset strip light both turn off (all other lights stay green), press 123456789*0# in sequence. In my case I'm using an 8861 but anything in the 8800 and 7800 family should be the same.

For others who come here and are in the same boat as Karl you can also do this through the phone menu In this video we look at how to factory reset an 8800 series phone

Factory Reset Cisco IP Phone 7841 (Using Keypad) YouTube

The Trivial File Transfer Protocol (TFTP) server IP address should be configured with option 150 or option 66 Conditions: When attempting the keypad button factory reset procedure documented in the 8841/51/61 administration guide, the phone never reaches the state where "all other lights stay green." Workaround: The correct procedure is: 1. In this video we look at how to factory reset an 8800 series phone

Factory Reset Cisco Phone CP3905 / Reset Telefone IP Cisco CP3905 YouTube. Choose one option to reset the phone: All, Network, or Security For others who come here and are in the same boat as Karl you can also do this through the phone menu

FactoryResetting Cisco VoIP Phones ITS Documentation. Conditions: When attempting the keypad button factory reset procedure documented in the 8841/51/61 administration guide, the phone never reaches the state where "all other lights stay green." Workaround: The correct procedure is: 1. The keypad button factory reset procedure in the 8841/51/61 Administration Guide is not accurate