| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide terminal equipment or the like suitable for specifying a cause of a communication failure. <P>SOLUTION: In a terminal device 201, a communication part 501 communicates with another communication equipment via a computer communication network, and a session part 502 repeats communication with another first communication equipment through the communication part during a period from the start to the end of session with another first communication equipment, and a discrimination part 503 tries to make communication with another second communication equipment through the communication part 501 in the case of a failure of communication with another first communication equipment through the communication part 501 and discriminates whether communication with another second communication equipment is successful or not, during the period from the start to the end of session, and an output part 504 outputs information indicating that trouble occurs in communication with another first communication equipment, in the case that it is discriminated by the discrimination part 503 that communication with another second communication equipment is successful, and outputs information indicating that trouble occurs in communication with the computer communication network, in the other case. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
