发明名称 |
System and method for detecting the presence or availability of a telephone user and publishing the number in the internet |
摘要 |
A method of operating an availability service in a telecommunication system (1) interconnecting a legacy telephone system (10) with at least one presence system (11), said legacy telephone system including a plurality of terminals (T1...T10), at least some (T1,T2) of which are terminals of subscribers to said availability service, said method including: (a) continuously monitoring each subscriber terminal (T1,T2) for a change of a call status of said subscriber terminal from the presence of a call to the absence of a call; (b) generating a first or "high availability" signal when said call status of said subscriber terminal changes from said presence of a call into said absence of a call; (c) monitoring an interval of time beginning with said first signal; (d) generating a second or "availability unknown" signal after a predetermined time period tau within said interval; and (e) making said availability signals accessible to any interconnected presence system. <IMAGE> |
申请公布号 |
EP1161067(A3) |
申请公布日期 |
2004.04.21 |
申请号 |
EP20010108093 |
申请日期 |
2001.03.30 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
KLEINOEDER, WOLFGANG B.;TRUONG, HONG LINH;HEUSLER, LUCAS A;DUPONCHEL, YANN;GRAF, MARCEL;DERMLER, GABRIEL |
分类号 |
H04L12/18;H04L12/58;H04L29/08;H04M3/22;H04M3/42;H04M7/00;H04Q3/00 |
主分类号 |
H04L12/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|