Telephone system with receiver identifying device

Abstract

Abstract PURPOSE:To improve office work efficiency at a workshop etc., by receiving the transmission of a receiver identification signal allocated to a specific person in a telephone set on an opposite side, in addition to an ordinary call signal, at the telephone set on a reception side, and generating identifiable acoustic tone in stead of ordinary call tone by an acoustic tone generating device classified by every receiver. CONSTITUTION:Preliminarily, a receiver number, for example 1, 2, 3, ..., etc., is attached on each of plural receivers at every telephone set 3, and identifiable different acoustic tone generated by an acoustic tone generating device (d) classified by every receiver is allocated to each receiver. A transmitter, in case of desiring to call with an opposite having, for example, a number of '1', depresses an ordinary pressing button 4, and following that, depresses the pressing button of a receiver number '1'. A receiver identification signal receiver (c) receives the identification signal of '1', and thereby, the acoustic tone generating device (d) classified by every transmitter generates the acoustic tone corresponding to a receiver 1. Therefore, it is possible to recognize the call that it is placed on the receiver '1' out of the plural receivers, and the receiver '1' can respond without hesitating.

Inventors

• 👤 Norio Seki
• 👤 則雄 関

Bibliographic Details