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Digit transmission over wireless communication link

  • US 6,526,026 B1
  • Filed: 12/10/1997
  • Issued: 02/25/2003
  • Est. Priority Date: 12/10/1997
  • Status: Expired due to Fees
First Claim
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1. A method of communication, comprising the steps of:

  • establishing a wireless connection between a wireless access communication unit and a base station, said wireless connection comprising a forward link and a reverse link;

    establishing, in response to a user request, a telephone call across said wireless connection;

    receiving dual-tone multi-frequency (DTMF) tones at said wireless access communication unit from said user;

    formatting, for each DTMF tone received, a pair of direct transfer application part (DTAP) messages at said wireless access communication unit, said pair of DTAP messages indicating a starting time and a stopping time of the DTMF tone received;

    transmitting, for each DTMF tone received, said pair of DTAP messages over said wireless connection to said base station, a first one of said pair of DTAP messages being transmitted at the start of the DTMF tone and the second one of said pair of DTAP messages being transmitted at the end of said DTMF tone; and

    relaying, for each DTMF tone received, said pair of DTAP messages from said base station to a mobile switching center.

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