Voice over data communication system

The method of contemporaneous full duplex real time two-way voice and data communication between first and second computer terminal locations comprising:

• establishing a value for the number of bytes in a data packet;
• establishing, for each communication session values for the number of bytes and the location within each data packet dedicated to the transmission of voice information, control information, and data transmission respectively;
• transmitting from each of the first and second computer terminal locations a sequence of data packets with synchronization bytes in certain ones of the voice byte locations, the transmitting step including modulating carrier signal with the data packets and transmitting the modulated carrier signal over a voice transmission path;
• receiving at each of the first and second computer terminal locations the transmitted sequence of data packets, and upon verified receipt thereof transmitting an acknowledgement of the receipt to indicate the establishment of synchronization between the two locations, the step of receiving including demodulating the modulated carrier signal to recover the data packets;
• and
• thereafter transmitting from each of the first and second computer terminal locations a sequence of data packets with the voice byte locations thereof dedicated to the transmission of voice information.