There are LEDs that light up on the UBlocker and also on the Phone Adapter.

UBlocker WIFI -- The LED on the circuit board will usually show in GREEN when the unit is in idle mode (e.g. ready to block calls).

UBlocker LAN -- The LED on the circuit board will usually show in RED when the unit is in idle mode (e.g. ready to block calls).  There are 2 LEDs on the Ethernet port.  The one on the left side should be GREEN (power) and the other should be GREEN or AMBER (activity) in idle mode.


Telephone Adapter -- The LED on the Telephone adapter should be RED in idle mode.