| 摘要 |
PROBLEM TO BE SOLVED: To provide a PoC data transmission method for distributing additional data for attaining an additional function of PoC based on a PoC protocol. SOLUTION: The PoC data transmission method has: a first step of adding additional data (setting information) to a first message to be transmitted to a PoC server based on the PoC protocol from a terminal (PoC client) on the transmitting side and transmitting setting information from the PoC client to the PoC server together with the first message; and a second step of adding the setting information to a second message to be transmitted from the PoC server which has received the first message to one or more terminals (PoC clients 2, 3) on the receiving side based on the PoC protocol and transmitting the setting information from the PoC server to the PoC clients 2, 3 together with the second message. In the PoC data transmission method, the additional data is transmitted by using the messages to be transmitted under the PoC protocol, then, an additional function of PoC is attained. COPYRIGHT: (C)2007,JPO&INPIT
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