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Distributed gateway system for telephone communications

  • US 6,738,470 B1
  • Filed: 04/29/2000
  • Issued: 05/18/2004
  • Est. Priority Date: 04/29/2000
  • Status: Expired due to Term
First Claim
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1. A method of establishing a telephone connection from a digital telephone service subscriber to an analog telephone service subscriber, wherein the telephone connection is converted from analog to digital form without a central gateway, the method comprising:

  • receiving at a call server a telephone call from a first digital telephone service subscriber using a first digital telephone device;

    determining whether a destination party of said telephone call is a digital telephone service subscriber;

    identifying a second digital telephone service subscriber having a second digital telephone device connected through an analog channel of said second subscriber'"'"'s telephone service to an analog telephone service provider supplying analog telephone service to said destination party; and

    routing said telephone call to said second digital telephone device through a digital channel of said second subscriber'"'"'s telephone service, after which said telephone call is transferred to said analog channel and routed to said analog telephone service provider for completion to said destination party.

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