Multi-telephone parallel operation circuit

The utility model relates to a multi-channel communication circuit, and especially relates to a multi-telephone parallel operation circuit. The multi-telephone parallel operation circuit comprises a program-controlled telephone exchanger and a plurality of telephones. Two ends of each telephone are respectively connected with an anode wire and a cathode wire of the program-controlled telephone exchanger, and the plurality of telephones are connected in parallel. The key points of the structure is in that: the multi-telephone parallel operation circuit further comprises a parallel circuit, a diode and a resistor are connected in parallel to form the parallel circuit, the parallel circuit is connected in series forwardly with the anode wire or the cathode wire of the program-controlled telephone exchanger and is located between the program-controlled telephone exchanger and the plurality of the telephones. The multi-telephone parallel operation circuit is advantageous in that: a program-controlled telephone exc