I have a Samsung intensity II and my husband has an LG Revere.  Simple phones, true, but they should still get a signal.  I can hold my phone next to the network extender and, even though the phone will note "network extender" at the top of the screen, I only get 1 bar.  Outside on the deck is 1 bar and it flickers to 2 once in a while but not long enough for a call.