Number portability in a communications system
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United States of America Patent
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Feb 14, 2006
Grant Date -
Mar 25, 2004
app pub date -
Aug 6, 2003
filing date -
Nov 22, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A communication system is disclosed comprised of a signaling processor and an interworking system. The signaling processor receives a call setup message including a called number, processes the called number to transmit a query, receives a response message responsive to the query that includes number portability information for the called number, processes the number portability information to select an identifier for routing, and transmits a control message that identifies the identifier. The interworking system receives a user communication and the control message, converts the user communication into communications that include the identifier, and transfers the communications that include the identifier.
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