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Method of speeding call flow

  • US 9,165,466 B2
  • Filed: 06/15/2011
  • Issued: 10/20/2015
  • Est. Priority Date: 06/15/2011
  • Status: Active Grant
First Claim
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1. A method of communicating between a vehicle and a central facility, comprising the steps of:

  • (a) initiating at a vehicle a request for turn-by-turn directions;

    (b) establishing a packet-switched call between the vehicle and a central facility using a mobile dialed number (MDN) and a hotline number, provided by a wireless carrier system, that permits a plurality of simultaneous calls associated with the MDN;

    (c) offering a vehicle occupant a service option that uses a circuit-switched call;

    (d) if the vehicle occupant accepts the service option, directing the wireless carrier system to establish the circuit-switched call using the MDN while maintaining the packet-switched call in a dormant state; and

    (e) receiving determined route information at the vehicle from the central facility via the packet-switched call.

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