| 摘要 |
PURPOSE:To allow a guarding reception center to grasp the state of a terminal equipment correctly by storing the abandonment of guarding information and its transmission if the transmission of guarding information is abandoned once and sending the stored guarding information the transmission abandonment information after an incoming call in the presence of the incoming call. CONSTITUTION:If a fire takes place, a transmission control section 18 applies automatic dialing to the alarm reception center via a network control section 17 and sends alarm to an alarm reception center after the reply of the alarm reception center. If the reply of the alarm reception center does not come in this case, a line state storage section 14 stores the alarm signal detected by a sensor 11 as it is and the line state information representing the absence of reply from the alarm reception center is stored. Thus, when an incoming call comes within a prescribed time, the transmission control section 18 sends the alarm and line status information detected by the sensor 11 and stored in a line status storage section 14 and sends the status of the alarm storage section 13.
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