IMPROVED AUDIO DISTRIBUTION SYSTEM

A signal distribution and communication arrangement (100) controls the broadcast of different types of signals through speakers located in various zones (A-D). The arrangement includes an audio receiver circuit (102) which responds to a music signal from an external music source, and an associated threshold detection circuit which provides a music mute function. Further, a page interface circuit, responds to a page signal generated from a telephone handset (126), which generates a paging control signal and serves as a power source to the telephone handset; and a doorbell interface circuit responds to any of a plurality of doorbell signal sources at differing locations (106, 107, 108) by generating a doorbell control signal and activating a corresponding doorbell tone sequence which identifies the location of the doorbell signal source. Finally, a control circuit, responds to these various circuits by selecting which of the corresponding signals should be broadcast by the speakers (L, R).