HI I have an spa3102 which was previously working fine. However it is now giving me cause 404 not found errors. I had this the other day with another adapter, changed the line cable and it was fine. This one however shows line voltage as -48V, which presumably is telling the 3cx that the line is not available? strange thing is though that incoming calls are fine and been routed to the 3cx correctly, i just cant make outband calls. when an inbound call comes in line voltage goes to about 145V. I have been playing with the line in voltage trying to set it to -13V (this is the state the line goes to when i pick up the phone), however the spa3102 still thinks it is on hook. any ideas?