公开(公告)号：JP2002016696A

公开(公告)日：2002-01-18

申请号：JP2001142640

申请日：2001-05-14

Applicant: IBM

Inventor： KLEINODER WOLFGANG B ,  TRUONG HONG LINH ,  HEUSLER LUCAS S ,  DUPONCHEL YANN ,  GRAF MARCEL ,  DERMLER GABRIEL

IPC: H04M3/50 ,  H04L12/18 ,  H04L12/58 ,  H04M3/00 ,  H04M3/22 ,  H04M3/42 ,  H04M7/00 ,  H04Q3/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for giving the instruction of the availability in an existing telephone system to the users of presence services connected to each other, e.g. the Internet presence systems. SOLUTION: This method/system includes a step to monitor continuously the subscriber terminals when every subscriber terminal changes from a call presence state to a call absence state (a), a step to produce a 1st signal when the subscriber terminal changes from the call presence state to the call absence state (b), a step to monitor a period covering from the start of the 1st signal (c), a step to produce a 2nd signal when a prescribed period τ passes in the period (d) and a step to enable both 1st and 2nd signals to access the presence systems which are connected to each other (e).

公开(公告)号：CA2346760C

公开(公告)日：2008-02-12

申请号：CA2346760

申请日：2001-05-07

Applicant: IBM

Inventor： DUPONCHEL YANN ,  TRUONG HONG LINH ,  GRAF MARCEL ,  DERMLER GABRIEL ,  KLEINODER WOLFGANG B ,  HEUSLER LUCAS S

IPC: H04M3/42 ,  H04M3/50 ,  H04L12/18 ,  H04L12/58 ,  H04M3/00 ,  H04M3/22 ,  H04M7/00 ,  H04Q3/00 ,  H04Q3/42

Abstract: 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 o f 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 predetermin ed time period .tau.within said interval; and (e) making said availability signals accessible to any interconnected presen ce system.

公开(公告)号：GB2365671A

公开(公告)日：2002-02-20

申请号：GB0111141

申请日：2001-05-04

Applicant: IBM

Inventor： TRUONG HONG LINH ,  HEUSLER LUCAS S ,  DUPONCHEL YANN ,  GRAF MARCEL ,  LIVER BEAT

IPC: H04M3/432 ,  H04M3/48 ,  H04M3/493 ,  H04M3/56

Abstract: A teleconferencing system 10 comprises one or more telecommunication systems 1;2;3, and two or more subscriber terminals 61;71 connected to said telecommunication systems. An electronic computing means 4 is connected the telecommunication systems of the teleconferencing system. The electronic computing means, which is typically a server-type computer, runs a conference initiating program 5. Means is provided for supplying an availability signal based on presence information associated with each subscriber terminal. The availability signal is accessible to the server. The telecommunication systems cooperate with the conferencing initiating program to initiate a conference between the subscriber terminals. The program 5 initiates a conference between the subscriber terminals by attempting transmission of a conference call when such call is requested by any of said subscriber terminals. The conference call is transmitted to each subscriber terminal as soon as its associated availability signal indicates availability of that terminal.

公开(公告)号：CA2346760A1

公开(公告)日：2001-11-17

申请号：CA2346760

申请日：2001-05-07

Applicant: IBM

Inventor： HEUSLER LUCAS S ,  TRUONG HONG LINH ,  DERMLER GABRIEL ,  DUPONCHEL YANN ,  KLEINODER WOLFGANG B ,  GRAF MARCEL

IPC: H04M3/50 ,  H04L12/18 ,  H04L12/58 ,  H04M3/00 ,  H04M3/22 ,  H04M3/42 ,  H04M7/00 ,  H04Q3/00

Abstract: 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 (T,...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 o f 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 predetermin ed time period ~ within said interval; and (e) making said availability signals accessible to any interconnected presen ce system.