Method and apparatus for providing presence status of...

Details Method and apparatus for providing presence status of... Method and apparatus for providing presence status of...

2011-07-19

2011-07-19

Tsang, Fan (Department: 2614)

Telephonic communications

Reception of calling information at substation in wireline...

Extracting call id from transmitted signal

C709S224000

Reexamination Certificate

active

07983404

ABSTRACT:
A method and apparatus for conveying presence information from distinct communication devices are disclosed. The present invention enables multiple communication devices using distinct communications technologies, such as cellular telephone, traditional wire line telephone, packet based telephone, and computer supporting instant messaging applications, to communicate presence status to a single server to enable another subscriber to determine the best method to use to establish a communication channel with a subscriber.

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