Well unless i`ve read the forum wrong it sounds like you maybe programming the wrong port, check program 04 to make sure. Or it sounds like you should`nt be using *71 but use 81 or 87 to program the ringing. Cause if you are trying to make a physical phone ring that means it has a regular DN which does not use *71 for ringing. *71 is for PHDN`s. Hope that helps. If not call me a dummy.