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An inband signaling modem communicates digital data over a voice channel of a wireless telecommunications network. An input receives digital data. An encoder converts the digital data into audio tones that synthesize frequency characteristics of human speech. The digital data is also encoded to prev

An inband signaling modem communicates digital data over a voice channel of a wireless telecommunications network. An input receives digital data. An encoder converts the digital data into audio tones that synthesize frequency characteristics of human speech. The digital data is also encoded to prevent voice encoding circuitry in the telecommunications network from corrupting the synthesized audio tones representing the digital data. An output then outputs the synthesized audio tones to a voice channel of a digital wireless telecommunications network.

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1. A multichannelinband signaling modem for communicating digital data over a voice channel of a telecommunications network, comprising:an input for receiving outbound digital data; a first modulator that converts a first binary bit value in a first portion of the outbound digital data into an outbo

1. A multichannelinband signaling modem for communicating digital data over a voice channel of a telecommunications network, comprising:an input for receiving outbound digital data; a first modulator that converts a first binary bit value in a first portion of the outbound digital data into an outbound first audio tone having a first frequency and converts a second binary bit value in the first portion of the outbound digital data into an outbound second audio tone having a second frequency; a second modulator that converts a first binary bit value in a second portion of the outbound digital data into an outbound third audio tone having a third frequency and converts a second binary bit value in the second portion of the outbound digital data into an outbound fourth audio tone having a fourth frequency; a bi-directional port for outputting and receiving audio tones over the voice channel of the telecommunications network; a first decoder that is coupled to the port and monitors for inbound first and second audio tones and converts any detected inbound first audio tones into a first binary bit value of a first portion of inbound digital data and converts any detected inbound second audio tones into a second binary bit value of the first portion of inbound digital data; a second decoder that is coupled to the port and monitors for inbound third and fourth audio tones and converts any detected inbound third audio tones into a first binary bit value of a second portion of inbound digital data and converts any detected inbound fourth audio tones into a second binary bit value of the second portion of inbound digital data; and a controller that controls when the first and second modulators generate outbound audio tones and when the first and second decoders monitor for inbound audio tones.