| 摘要 |
PROBLEM TO BE SOLVED: To provide a group communication control method in which group communication is not ended automatically even if communication does not occur for a predetermined time during user input, for example, and to provide a communication terminal and a communication system. SOLUTION: Time clocking is started when data are transmitted/received in group communication and reset when new data are transmitted/received during clocking. Clocking is also started when formation of data in group communication is requested during clocking, and group communication is ended when clocking is not reset but performed for a predetermined time or longer. COPYRIGHT: (C)2007,JPO&INPIT
|
