Factory Reset Cisco IP Phone

Question:

How do I reset my Cisco IP phone back to the factory settings?


Answer:

Follow the steps below.


A factory reset will reset all of the parameters of the phone including network and security settings. This is sometimes necessary for troubleshooting or resolving phone issues.

1. Unplug the Ethernet cable from your Cisco IP phone. Wait 5 seconds.

2. Press and hold #.

3. While still holding #. Plug the Ethernet cord into the phone. The headset and speaker buttons will light up.

4. Release the # and enter the following: 123456789*0# NOTE: The headset light will turn off after you press 1.

5. The Mute button will light up. If Mute does not light up, repeat step 4 until it does. This may take up to 10 minutes.

6. The phone will reboot and the Cisco logo will appear. It will take 2-5 minutes for the phone to fully reset.

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Details

Article ID: 142209
Created
Tue 3/22/22 3:29 PM
Modified
Tue 4/19/22 6:06 PM