West Corporation

Gingras, Alain

Rivard, Jean-marc

Alain Gingras

Yvon Desnoyers

Gilbert Vellet

Jean-Marc Rivard

An example AC/DC phone line detection system may include one or more of an electronic circuit that is floating with reference to ground, a first A/D converter coupled to the electronic circuit and configured to detect ringing voltages from DC voltages included in a telephone line, a second A/D converter coupled to the electronic circuit and configured to detect caller identification information from AC voltages included in the telephone line, and a processor configured to control signals detected by the first and second A/D convertors and output information about the signals to call taking equipment.

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Pierrefonds, Canada

Alain Gingras