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System and method of transmitting data messages between subscriber units communicating with/between complementary/disparate networks

  • US 6,947,737 B2
  • Filed: 12/29/2000
  • Issued: 09/20/2005
  • Est. Priority Date: 12/30/1999
  • Status: Expired due to Term
First Claim
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1. A system enabling a first device operatively communicable with at least a first wireless network to transmit a data message to at least one wireless device operatively communicable with said first wireless network and at least a second wireless network, said system comprising:

  • a host computer, operatively communicable with said first wireless network, capable of receiving a data message from the first device;

    said first wireless network comprising a routing switch that;

    receives the data message from said host computer;

    reads a profile of the at least one wireless device, the profile comprising data pertaining to at least a primary network and a secondary network to which the at least one wireless device is registered with, wherein the primary network and secondary network are said first wireless network and said second wireless network, respectively;

    adds a radio frequency header to the message;

    transmits the message to said at least one wireless device in the primary network and, after a predetermined number of transmission attempts, receives a negative acknowledgement message from the primary network;

    adds a message transmission header in accordance with the protocol used by the secondary network; and

    transmits the message to the secondary network; and

    a switch operatively communicable with the secondary network for receiving the message transmitted by said routing switch and transmitting the message to at least one of said at least one wireless device via the secondary network.

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