Integrated services user part (ISUP) /session initiation protocol (SIP) gateway for unlicensed mobile access (UMA) emergency services call flow
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United States of America Patent
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-
Jan 3, 2012
Grant Date -
Jan 18, 2007
app pub date -
Jul 17, 2006
filing date -
Jul 18, 2005
priority date (Note) -
In Force
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Abstract
integrated services user part (ISUP) location request messages are encapsulated within SIP. The SIP encapsulated location request message is then routed over the Internet to a destination VoIP positioning center (VPC).
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