Patent ID: 6826174
Filing Date: 2004-11-30
Classification: H04M

Abstract:
A Voice over Internet Protocol (VoIP) interface between a standard telephone and a packetized dial-up network, comprising:a podule for generating POTS responses, the podule being electrically connected to the telephone via tip and ring lines, wherein analog voice signals are typically picked up by the telephone microphone and transmitted via the tip and ring lines to the podule; and a modem operably connected to the podule via a detachable interface, the modem including: a telephone CODEC electrically connected to the podule, the telephone CODEC performing analog-to-digital and digital-to-analog conversion and compression of audio signals transmitted with the telephone; a network CODEC electrically connected to the dial-up network, the dial-up network CODEC performing analog-to-digital and digital-to-analog conversion and compression of audio signals transmitted with the dial-up network; a Digital Signal Processor (DSP) electrically connected to the telephone CODEC and the network CODEC, the DSP facilitating simultaneous communication with the telephone CODEC and the network CODEC, the DSP sending control signals via the telephone CODEC to the podule to initiate POTS response generation; and wherein the modem is operably connected to a host computing device.