| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a communication acknowledgement device, network and communication acknowledgement method capable of reducing work accompanying communication acknowledgement, and acknowledging communication to a target device without directly connecting the relevant device. <P>SOLUTION: A telephone set 4 transmits a PB signal relating to an IP address to a communication acknowledgement device 1, the communication acknowledgement device 1 transmits generated ping to a device 5. In receiving ping to its own IP address, the device 5 redirects a predetermined response to the communication acknowledgement device 1 that is a transmission source. When a predetermined response is redirected from a device 5 relating to the transmitted IP address within a predetermined time, the communication acknowledgement device 1 judges that communication between the relevant device 5 and the Internet 71 is excellent. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
