Description:
This article will show you how to do the following.
Factory reset a Yealink T series phone
Methods:
From the Idle screen, hold the
OK
button on the phone.
When prompted, press
OK
again to reset the device to factory default settings.
After phone resets and loads config files, user will be prompted for last 5 digits of the SN (Located above MAC address on sticker, all numeric).