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Voice over data modem with selectable voice compression

  • US 5,617,423 A
  • Filed: 07/07/1994
  • Issued: 04/01/1997
  • Est. Priority Date: 01/08/1993
  • Status: Expired due to Term
First Claim
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1. A method for negotiating communications parameters between a plurality of transceivers in a packet network, comprising the steps of:

  • uniquely encoding a packet to identify the packet as a communications parameter negotiation request;

    encoding the packet with codes designating communications parameters; and

    negotiating the communications parameters, comprising the steps of;

    (a) transmitting the packet from a first transceiver to a second transceiver, the packet identifying a particular voice compression parameter;

    (b) receiving the packet in a second transceiver, wherein the second transceiver recognizes the packet and transmits an acknowledgement packet if the voice compression parameter is acceptable;

    (c) if the first transceiver receives the acknowledgement packet, then using the particular voice compression parameter for communications; and

    (d) if the first transceiver does not receive the acknowledgement packet, then selecting another voice compression parameter and returning to step (a).

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