VoIP Phones - Factory Reset

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Here's how to Factory Reset your VoIP Phone:

Snom 3xx Series

Since firmware version on the Snom 3xx Series it is possible to reset the phone using the key pad by pressing the following key sequence:

* Volume Up * Volume Down #

To set the phone back to "Admin mode", press the Settings key:

  • Firmware versions lower than 7.X: Select "Admin Mode".
  • Firmware versions lower equal or greater 7.X: Enter "Maintenance" and select "Admin Mode".
  • On the prompt enter your administrator password, if you have set one, or the default password, which is "0000" (four zeros), and confirm.

Reset lost administrator password by performing a reset to factory defaults via Web User Interface:

  • Obtain your phone's IP address and currently used firmware version by pressing the Help button on your Snom 3xx.
  • Open any web browser and choose the URL corresponding to your current firmware version:
  • Copy the appropriate URL into the address line of your web browser and then change "" to your phone's actual IP address.
  • The phone reboots automatically and everything will be accessible again.