Method of establishing communications between selected user...

Telephonic communications – Special services – Call diversion

Reexamination Certificate

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Details

C379S199000, C379S200000, C370S522000

Reexamination Certificate

active

10553452

ABSTRACT:
Each communication terminal of the calling user (Uj-k) is logically connected to a first communication equipment (Sk) and each communication terminal of the called user (Uj′-k′) is logically connected to a second communication equipment (Sk′). The combination of these terminals enables a plurality of modes of communication between these two users. If the called user accepts the setting up of a call:the second communication equipment (Sk′) determines each terminal of the called user that would enable setting up of the requested call;the second communication equipment (Sk′) then sends the first communication equipment (Sk) a terminal identifier for each terminal thus determined; andthe first communication equipment (Sk) then selects, from the identifiers of the called user that it receives, at least one terminal identifier, and then initiates the setting up of a call.

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patent: 2002/0024947 (2002-02-01), Shem
patent: 2002/0187777 (2002-12-01), Osterhout
patent: 1 093 281 (2001-04-01), None
patent: WO 00/41406 (2000-07-01), None
Henning Schulzrinne, SIP: Cal Setup and Beyond: , Ericsson Signaling Days 2000, ′Online! Nov. 14, 2000, XP002265502.
Vinod K. Bhat: “Voice Over IP—The SIP Way”, Technology Review #2001-03/TATA Consultancy Services, ′Online! Apr. 2001, XP002265503.
Johnathan D. Rosenberg et a. “The Session Initiation Protocol (SIP): A Key Component for Internet Telephony”, Computer Telephony, Jun. 2000, vol. 8, Issue 6.

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