| 摘要 |
PURPOSE:To terminate a talking with a prescribed notice when an upper limit is exceeded and to shorten the talking time to the user of an unspecified user by setting optionally the upper limit of a talking utilizing time. CONSTITUTION:When an automobile telephone system is in the standby state at first, an upper limit of a talking utilizing time is inputted from an operating section 2 to a storage section 4. When the operation section 2 enters a telephone number and dials the number, a control section 1 applies dial connection processing and the telephone set enters the talking state via a connection section 5 and an antenna 6. The talking by a transmission microphone 9 is attained during this state. When the talking state is entered, a talking utilizing time timer is started. The content of the timer and the upper limit of the talking utilizing time set in advance are compared during the talking. When the timer value exceeds the upper limit, a talking end signal is sent via the connection section 5 and the antenna 6 to interrupt the talking. |
