This article is applicable to Yealink T1, T2, T3, T4, T5, CP and VP series
- Power on the phone.
- Wait until the “Idle” screen is visible.
- Hold down the “OK” or “REDIAL” or “Mute Indicator” button until the message “Reset to factory settings?” appears.
- Press “OK” or “Yes” depending on the model.
- Your phone has been successfully reset.