I HAVE MICS WITH T-1 WITH DID'S, THEY HAVE 3 SEC WHO ANSWER PHONES FOR 6 MANAGERS, 1 PHONE WITH 1 ANSWER DN, 1 PHONE WITH 2 ANSWER DN'S, 1 PHONE WITH 3 ANSWER DN'S, THE 1ST 2 PHONES WORK FINE THE LAST ONE ONLY 1 ANSWER DN RINGS WHEN CALLED FROM OUTSIDE, WHEN CALLED INTERNALLY ALL 3 RING...