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Tone and announcement message code generator for a telephonic switching system and method

  • US 5,127,004 A
  • Filed: 09/15/1989
  • Issued: 06/30/1992
  • Est. Priority Date: 09/15/1989
  • Status: Expired due to Term
First Claim
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1. An apparatus for generation tone and announcement message codes for a telephonic switching network, comprising:

  • a single message memory for storing a repertoire of PCM encoded tone and announcement messages respectively at a plurality of preselected addressable message memory locations of said message memory;

    a multichannel interface circuit for interconnecting said single message memory with said telephonic switching system;

    a share memory for storage of identification codes for selected ones of said plurality of message memory locations for each of a plurality of time slot channels;

    a controller for issuing command signals with respect to each of said time slot channels in response to a computer of the telephonic network; and

    a sequencer responsive to said controller for selectively causing said single message memory to successively write out, through the multichannel interface circuit, the plurality of selected tone and announcement messages at said selected ones of the plurality of addressable message locations for each of said time slot channels in accordance with a command signal directing it to do so.

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