Method and apparatus for automatically converting from an analog

Details Method and apparatus for automatically converting from an analog Method and apparatus for automatically converting from an analog

1994-06-24

1997-02-25

Kuntz, Curtis

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 98, 379 88, 379 89, H04M 1100

Patent

active

056065990

ABSTRACT:
An enhanced micro-controller having multiple operating modes, including an idle mode, an analog voice mode, a digital data mode, and a simultaneous voice and data mode, and control logic for establishing multiple logical connections and voice as well as data transmission protocols over these logical connections with another DCE, when switching from the analog voice mode to the simultaneous voice and data mode, is provided to a DCE designed to support multi-modal voice and/or data calls over a single analog-loop telephone line. In one embodiment, the establishment of the voice transmission protocol includes joint negotiation of the voice compression/decompression algorithm to be used by the mode transition initiating and responding DCEs.

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Stockford, Paul, "Voice View Offers Voice and Data Over a Single Analog Line", article appearing in Voice Processing Magazine, Jul. 1992.

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