The present invention provides an echo reduction apparatus, system, and
method that advantageously reduces echo when communicating over
packet-switched networks. An echo reduction apparatus, including echo
reduction circuit, operably couples a headset or handset device to an
audio source that is capable of transmitting a sound signal. The echo
reduction circuit receives the sound signal from the audio source and a
transmit signal from the headset or handset device and provides an
adjusted sound signal to the audio source. Advantageously, a variety of
headsets and handsets may be used in accordance with the present
invention with reduced caller echo and without the need to purchase new
headsets or handsets.