| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a user-friendly telephone system and its login management method by making it unnecessary for a user having forgotten to perform logout operation to return to a place before movement of the user. <P>SOLUTION: When registration notification making a request for login is received, the telephone number of a login user is read out from user identification information contained in the registration notification, and matching/unmatching of an IP address is confirmed moreover at a registration information management server 20, when the same telephone number has been registered. When the telephone number matches but the IP address does not match, it is judged whether this login is initial registration or an update of registration. If it is the initial registration, it is judged that a login is made from a different telephone device by the same user, and the content of an address management table 25b is overwritten with new registration information. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
