| 摘要 |
PROBLEM TO BE SOLVED: To allow a caller to acquire position information of a called party. SOLUTION: When a caller radio calling terminal 23-1 uses a call switch to designate a called party radio calling terminal 23-2, a call request signal having call identification information that denotes calling switch operation with an ID number of the terminal 23-2 to be a calling destination and its own ID number of the terminal 23-1 to be a calling source is transmitted to a radio calling transmitter-receiver 22-1 and to a radio calling terminal 23-2 via a paging terminal 21 and the radio calling transmitter-receiver 22-3. When the radio calling terminal 23-2 receives the call signal, the ID number of the calling destination is exchanged with the ID number of the calling source automatically, a call request signal with call identification information denoting automatic reply added thereto is sent to the radio calling transmitter-receiver and the call signal with position information added thereto is sent to the radio calling terminal 23-1 via the paging terminal 21 and the radio calling terminal transmitter-receiver 22-1. The radio calling terminal 23-1 displays position information in a call signal by automatic reply.
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