| 摘要 |
PURPOSE:To automatically perform the reconnection of a radio channel and to continue a call by providing a memory to store the number of a caller and that of a callee, a function to measure electric field intensity, and an automatic outgoing function, and performing re-call issuing after recovering electric field intensity when disconnection due to the reduction of the electric field intensity occurs. CONSTITUTION:In case of issuing a call to a mobile terminal, an opposite number in busy is stored in a memory part 109. In case of receiving the call from the mobile terminal, the telephone number of a call issuing subscriber is transmitted to a call receiving subscriber before starting the call, and a call opposite number is stored in the memory part 109. When the disconnection due to the deterioration of a line occurs, a control part 107 monitors the state of the radio channel by a monitoring part 105, and when the mobile terminal goes out from a tunnel, etc., the re-call issuing is performed based on the opposite number stored in the memory part 109 after the recovery of the radio channel is confirmed, thereby, the call with a called party can be continued again. |
