| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for controlling an intercom system that makes it possible for a user of a slave unit for reception to hear synthetic voice including transmission voice transmitted by a slave unit communicating bi-directionally with a master unit.SOLUTION: A slave unit 3am is connected with a master unit 2a as a master command reception slave unit, and slave units 3as1, 3as2 are connected with the master unit 2a as slave command reception slave units. A main control device 1 transmits synthetic voice (Vam+Vb+Vc) without subtracting transmission voice Vam from the master command reception slave unit 3am to the master command reception slave unit 3am. The master command reception slave unit 3am disables side tone processing when it receives the synthetic voice (Vam+Vb+Vc). The slave command reception slave units 3as1, 3as2 receive the synthetic voice (Vam+Vb+Vc). |
