DIGITAL VOICE COMMUNICATION ADDITION DEVICE AND METHOD OF EXERCUTING VOICE AND MODEM COMMUNICATION SIMULTANEOUSLY

摘要

The present invention relates to a digital voice communication additional device for modem communication and a method for simultaneously performing modem communication and voice communication. The present invention relates to digital processing of voice signals of a telephone during modem communication and fax (FAX) modem communication with a conventional switching line modem. By allowing voice data to be included in a part of the digital transmission / reception channel through a modem, even a subscriber with only one line can simultaneously perform voice communication during modem communication, thus enabling time- and economical communication. It has the effect of setting up the environment.