Hierarchical telematics emergency call direction

Details Hierarchical telematics emergency call direction Hierarchical telematics emergency call direction

2011-08-02

2011-08-02

Phan, Huy (Department: 2617)

Telecommunications

Radiotelephone system

Emergency or alarm communication

C455S414100, C455S417000, C379S033000, C379S037000, C379S045000

Reexamination Certificate

active

07991381

ABSTRACT:
The disclosed examples of a telematics communication method involves detecting a condition signifying an emergency, and in response attempting a first wireless call directed to a call center of a telematics service provider, using a primary voice communication facility. If the first wireless call attempt fails, an attempt to complete at least one second wireless call directed to the call center is made, using one or more alternate voice communication facilities. Upon failure of the secondary call attempt(s), the method involves attempting to establish a wireless data communication with the call center, using a non-voice wireless communication facility.

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