There are two methods to reset this device.
Method 1
- Press and hold the Reset button on the back for 20 seconds.
Method 2
- Plug in the power adapter.
- Plug a phone to 'Phone 1′ port of the SPA122.
- Dial **** (Star key 4 times).
- You should hear 'Configuration Option Menu'.
- Dial 73738# (RESET#)
- Press 1 to confirm the reset.