Methods and systems for providing universal triggerless number portability
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United States of America Patent
Stats
-
Nov 11, 2003
Grant Date -
Nov 15, 2001
app pub date -
Mar 30, 2001
filing date -
May 5, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A universal triggerless number portability routing node receives a first call setup message from an end office. The triggerless number portability routing node may examine a first routing number (RN) value contained in the first call setup message to determine whether the first RN is a home RN value. If the first RN is determined to be a home RN value, a number portability database lookup is performed based on the called party dialed number. Once a number portability lookup is performed, the call setup message is modified to include a second RN value returned by the NP database, and the modified call setup message is routed to a destination node, which may be a tandem gateway or an end office/mobile switching center.
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