You need to start from default configuration / out-of-box status or e.g. recover the phones from password loss? Here is how you can factory reset the devices:

Index:

A) Using the phones web interface

In case you need to reset the H-Series phones to factory default, please try to do this with the help of the web user interface first, - if you can still access it.

Inside the web interface, select the tab: SERVICING
Select the Section: Provisioning
Look for: Reset Configuration and
Press the Reset button
Following dialog will pop up asking for your confirmation
When you are sure, press OK

B) Using the buttons on the device

HD30L, HD100 and HD101 (on the base)

Long press Vol+ (more than 5 seconds) then press Vol-/Vol+/Vol-/Vol+/Vol-/BS1/BS2/BS1 (please refer to the picture below)

If completed you will notice a short confirmation sound and the device will reboot, if not managed ( e.g. by provisioning) it will come up on factory default state as desired

On HD30L, BS1 is the speed dial key on the lower left, BS2 the one in the middle

Snom Service Hub > How can I reset the H-Series phones to factory default? > image-2024-8-26_16-55-10.png

HD300, HD331, HD350W and HD351W

Dial: * 9 9 0 0 0 0 #

If completed you will notice a short confirmation sound and the device will reboot, if not managed ( e.g. by provisioning) it will come up on factory default state as desired

Note: on the HD300 and HD331, before dialling * 9 9 0 0 0 0 #, press the "Speaker" button

HM201

Press the Reset button on the back of the base for at least 10 seconds to reset it (pressing it for 2 seconds will reboot the base)