Method and apparatus for providing enhanced communication capability for mobile devices on a virtual private network (VPN)
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United States of America Patent
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Dec 17, 2002
Grant Date -
N/A
app pub date -
Dec 1, 1999
filing date -
Aug 6, 1999
priority date (Note) -
In Force
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Abstract
A service communication system for mobile vehicles has a cellular telephony interface in individual ones of the mobile vehicles, for establishing telephony events over a cellular network with a base station, and a global positioning system in individual ones of the mobile vehicles for determining global position from transmissions from GPS satellites. A network of cellular base stations receives from and broadcasts to the mobile vehicles, lo and bridges events between cellular and public switched telephone service (PSTN) protocol. A unique network-level routing system is connected by first telephony trunks to the base stations and enabled to retrieve GPS position from the telephony events, and is connected by other trunks to a plurality of service centers connected to the network-level routing system, which determines a destination for individual ones of the telephony events among the plurality of service centers according to the retrieved GPS position.
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