Subscriber information service center (SISC)
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United States of America Patent
Stats
-
Aug 3, 2004
Grant Date -
Apr 11, 2002
app pub date -
Jan 18, 2001
filing date -
Oct 10, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A Subscriber Information Service Center (SISC) in a wireless telecommunications network provides location and status information about identified mobile subscribers to a requesting subscriber. The requesting subscriber may access the SISC by e-mail. The SISC retrieves the location information from the mobile subscriber's HLR, and returns the requested information by e-mail or by posting the information on a Web site associated with the SISC. A SIP proxy in the SISC enables a second-generation mobile subscriber to request information for other mobile subscribers. The SISC may also retrieve status information from the MSC serving the mobile subscriber relating to any ongoing call by the mobile subscriber.
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