| 摘要 |
PURPOSE:To prevent a no-charge call by driving a call compulsory disconnecting circuit when the next charging signal is not received within a specified time during a timer operation. CONSTITUTION:A CPU 109 starts a charging check timer that is provided utilizing a prescribed memory area and confirms that an answer flag which shows the presence/absence of reception of a first charging signal (including a dummy signal) is set or not. And next, the CPU 109 starts a charging timer. This is to perform a terminal multi-charging after a second charge. Afterwards, by monitoring the end flag of the charging timer, the timer is restarted at every setting of the end flag and a process is moved to a containing process. On the other hand, when a timer time elapses without the setting of the answer flag, after the charge checking timer is started, the CPU 109 judges that the reception of the charging signal is prevented by some reason and completes a containing decision process by setting a hook flag and moves to a hook process and therefore prevents a no-charge call by disconnecting the call compulsorily.
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