System and method for overcoming dual tone multi frequency (DTMF) signal attenuation in analog and packet based networks

摘要

A telephone may include a transmitter configured to transmit signals over a network a receiver configured to receive signals from the network a DTMF signal generator configured to generate DTMF signals, a DTMF gain adjustment module, and an amplifier module in communication with the DTMF signal generator and the DTMF gain selection module, where the amplifier module may be configured to amplify the DTMF signals. In one embodiment, the amplifier modules causes the DTMF signals to increase power by 10 dB so that DTMF signals being communicated over a network, possibly multiple packet networks, may be amplified if the DTMF signals are attenuated over the network and a remotely accessed telecommunications system, such as a voicemail system, cannot communicate with the telephone due to the attenuated DTMF signals.