Cisco 79XX - 7921 Factory Reset Procedure
Goal
This article goes over how to do a factory reset on the Cisco 7921 wireless IP phone. Make sure that the phone is behind a CallTower ASA or a CallTower managed circuit before performing a factory reset as doing so can cause additional issues.
Resolution/Steps
Step 1 Choose SETTINGS > Phone Settings.
Step 2 Press **2 on the keypad.
The phone briefly displays the "Start factory reset now?"
Step 3 Perform one of the following actions:
Press Yes to delete all settings. The phone cycles through normal startup procedures.
- Press No to cancel the reset.
Step 4 Press SETTINGS > Network Profiles to reconfigure the network settings for your WLAN.
Caution
Erasing the local configuration removes network profiles that are set up for the Cisco Unified Wireless IP Phone to access the WLAN. You must reconfigure the network settings after performing the reset to enable the phone to access the WLAN.
Additional Information
Remember to not perform this factory reset procedure on any phone that is not plugged in behind a CallTower ASA or CallTower managed circuit.
Common Issues/Related Articles
Factory Reset:
- 7940 and 7960: Cisco - Phone: 7940 and 7960 Factory Reset Procedure
- 7920: Cisco - Phone: 7920 Factory Reset Procedure
- 7942 and 7962: Cisco - Phone: 7942 and 7962 Factory Reset Procedure
- 7945, 7965, and 7975: Cisco - Phone: 7945, 7965, 7975 Factory Reset Procedure
- 7925: Cisco - Phone: 7925 Factory Reset Procedure
79XX Features:
- Cisco - Phone: Overview - 79XX Series
- Cisco - Phone: iDivert - 79XX Series
- Cisco - Phone: Pickup - 79XX Series
- Cisco - Phone: Extension Mobility - 79XX Series
- Cisco - Phone: Joining Calls - 79XX Series
- Cisco - Phone: Receiving Calls - 79XX Series
- Cisco - Phone: Call Park - 79XX Series
- Cisco - Phone: Speed Dials - 79XX Series
- Cisco - Phone: Transferring a Call - 79XX Series
- Cisco - Phone: Do Not Disturb (DND) - 79XX Series
- Cisco - Phone: Answering Additional Calls - 79XX Series
- Cisco - Phone: Cisco Function Directories - 79XX Series
- Cisco - Phone: Switching Between Calls - 79XX Series
- Cisco - Phone: Cisco Function Settings - 79XX Series
- Cisco - Phone: Cisco Function Buttons - 79XX Series
- Cisco - Phone: Returning to Initial Call - 79XX Series
- Cisco - Phone: Placing a Call on Hold - 79XX Series
- Cisco - Phone: Meet Me Conference Call - 79XX Series
- Cisco - Phone: Cisco Call Forwarding All - 79XX Series
- Cisco - Phone: Placing a Call - Internal, External, 911 or 411 - 79XX Series