| 摘要 |
[PROBLEMS] To share information in one of divided screens of a terminal device with members performing PoC communications. [MEANS FOR SOLVING PROBLEMS] A plurality of terminal devices used by the members performing PoC communications are included, and at least one of the screens partitioned and displayed by a screen dual-partitioning device 22 on a specific terminal device is shared with other terminal devices used by members performing PoC communications. |
