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Call initiation for legacy mobile circuit switched domain wireless systems

  • US 20030169768A1
  • Filed: 12/20/2002
  • Published: 09/11/2003
  • Est. Priority Date: 03/08/2002
  • Status: Abandoned Application
First Claim
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1. An interworking engine, comprising:

  • an input employable to receive a signal transmitted in circuit control protocol;

    a mapper employable to map the circuit-switched signal into a packet data control protocol format;

    an output employable to transmit the packet data signal in packet data control protocol format;

    an input employable to receive a response to the packet data signal in packet data control protocol;

    a mapper employable to map the packet data control protocol signal into circuit control protocol format;

    an output employable to transmit a message, in device control protocol, requesting a location indicated by the signal received in circuit control protocol; and

    an input employable to receive, in device control protocol, a response to the request for the location indicated by the signal received in the circuit control protocol.

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