Method and apparatus for transmitting and outputting data in voice communication

摘要

Disclosed is a method and apparatus for transmitting and outputting data in voice communication over a traffic channel. The apparatus includes: a signal generator for generating a low frequency signal corresponding to a key signal inputted during voice communication; a signal synthesizer for synthesizing the low frequency signal and a voice signal; a radio communication unit for transmitting the synthesized signal over the traffic channel; a signal separator for separating a low frequency signal from a signal received and processed by the radio communication unit; and a data output unit for detecting a frequency of the separated low frequency signal and outputting data indicated by the detected frequency.