How to clear a ShoreTel phone’s configuration settings and return it to factory settings

If a phone displays “No Service” after it boots, you can use this procedure to clear the settings.

On ShoreTel 100-, 200-, 500-, and 600-Series IP Phones

1. With the phone on hook, press the MUTE key followed by 25327# (CLEAR#).

2. Press * to clear all values.

The phone reboots. The reboot process is complete when the phone displays the date and time.


On ShoreTel 400-Series IP Phones

1. With the phone on hook, press the MUTE key followed by 25327# (CLEAR#).

The phone displays the Clear Configuration screen.

2. Do one of the following:

·         On the IP420, with Clear & reboot highlighted, press the selector button on the navigation keypad.

·         On the IP480, IP480g, and IP485g, press the Clear soft key.

The phone reboots and applies settings.