How to reset Yealink T46 to factory settings:
CAUTION: Doing a reset to factory default will completely erase all the settings of your IP Phone. Please only use this article if you were authorized by support. Strictly for troubleshooting purposes only.
- Press and hold the OK button for 5 seconds
- The LCD screen prompts with the following warning. When it does, press the OK button
- The LCD screen prompts "Welcome Initializing…Please wait."
- The phone will go through it's resetting procedure, which can take up to 5 minutes. Please DO NOT unplug the phone during this time.