Transfer phone device

Abstract

Abstract PURPOSE:To expand the opportunity of opposite response for a caller, by providing a setting switch which sets plural transfer addresses at a transfer telephone system, and a means which detects a busy tone when the transfer address is busy, and transmits a call to another transfer address again. CONSTITUTION:An incoming call to a first central office line is detected by an incoming call detection circuit 3, and a bit of information regarding the incoming call is transmitted to a microprocessor 6. The microprocessor 6 operates a di relay contact 2 by the above information, and sends a dial to a second central office line according to the input of the set data by the setting switch 8, then calls an opposite. When the opposite responds, a state goes to a transfer call state. When the opposite of the transfer address is busy, the busy tone is detected by a busy tone detection circuit 7, and the bit of information is transmitted to the microprocessor 6, and the microprocessor 6 catches again the second central office line by the above information, and sends the dial of a second transfer address to the second central office line, according to the input of the set data by the setting switch 9, then calls the opposite. In this way, it is possible to expand the opportunity of opposite response for the caller.

Inventors

• 👤 Munehiro Saito
• 👤 斉藤　宗宏
• 👤 Takao Okamoto
• 👤 隆雄 岡本

Bibliographic Details