| 摘要 |
PURPOSE:To attain sure connection with high accuracy and hardly subject to the effect of a signal from other device by adding a kind of a control signal to be returned from an opposite side and information designating the transmission timing in the sent control signal. CONSTITUTION:When a hook switch of a radio telephone set is in the off-hook state, the radio telephone set sends the call signal to a radio connection device. In the constitution of the control signal in such a case, the call signal of signal kind A31 and a radio telephone number of the identification code 32 exist. When the radio telephone set desires to shift the transmission timing of the call reply signal, sent timing information 33 is brought into significant information. Since a signal designating the sent timing of the control signal is transferred in addition to the information by which the radio connection device and the radio telephone set identify each other mutually at the connection control, the control signal is transmitted/received surely by sending the control signal accordingly. |
