| 摘要 |
PURPOSE:To eliminate the need for the complicated data transmission and reception through a radio line by sending a data for system function between a stationary radio equipment and a master set and sending receiving a state transit information signal between a mobile radio telephone set and the stationary radio equipment. CONSTITUTION:Stationary radio equipments 24a, 24n are connected to a master set 22 through a connection line 26 similarly as key telephone sets 23a, 23n to send and receive a data and a speech signal. The mobile radio telephone sets 25a, 25n form a radio line corresponding to the equipments 24a, 24n. The equipments 24a, 24n send a data with the equipment 22 to form a channel mutually or with the telephone sets 23a, 23n via the connection line 26 respectively. The speech signal and the state transit signal such as a call and end of call are sent/received through a radio line with the telephone sets 25a, 25n and complicated data processing with the equipment 22 for the extension mutual communication of the telephone sets 25a, 25n and selective speech with an external line or the like is not implemented via the radio line. |
