Presence display system and gateway apparatus

Details Presence display system and gateway apparatus Presence display system and gateway apparatus

2011-06-28

2011-06-28

Patel, Jayanti K (Department: 2465)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S467000, C370S507000, C370S512000

Reexamination Certificate

active

07969993

ABSTRACT:
Synchronization of presence information is established between different presence services. Presence information of each user is stored on the presence server27of the presence display system comprising mobile phones. Presence information of the SIP phone system comprising the SIP phone29and the SIPG/W (enterprise side)30is stored in the SIPG/W (enterprise side)30.When presence information of the presence server27has changed, the presence server27notifies the SIPG/W (enterprise side)30of the change in presence information via the SIPG/W (mobile communication network side)31.Conversely, when presence information of the SIP phone system has changed, the SIPG/W (enterprise side)30notifies the presence server27of the change in presence via the SIPG/W (mobile communication network side)31.

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