Backtrack:  
 
by lunarg on October 8th 2012, at 16:04

You can reset the SPA3102 to factory default using the Interactive Voice Response (IVR) and following these steps:

  1. Plug an analog (PSTN) phone into the Phone 1 port
  2. Dial ****: you'll hear a voice prompt.
  3. When the IVR is done talking, enter the sequence 73738, followed by a #.
  4. Press 1 to confirm. The unit will reboot to factory defaults.