| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a communication system and communication device or the like using radio taking measures to cope with unexpected disconnection of two or more present radio communication paths. <P>SOLUTION: A communication system 10 is composed of a communication device 11 and a repeater 12 which is connected with the communication device 11 within a short range by radio and connected with an opposite side communication device 15 via a network by radio to repeat the communication between the communication device 11 and the opposite side communication device 15, and is provided with local communication parts 111, 121 for detecting disconnection of a radio communication path connecting the communication device 11 and the repeater 12 and a radio communication path connecting the repeater 12 and the opposite side communication device 15, and a network communication part 123, and the communication device 11 is equipped with a notification part 113 for notifying a user of which one of the plurality of radio communication paths is detected as a disconnected radio communication path. <P>COPYRIGHT: (C)2004,JPO |
