What is the telephone voice box?
The invention is characterized in that it comprises a pick-up circuit, a voice collecting and transmitting circuit, a DTFM receiving circuit, a caller's display circuit, a pick-up detection circuit, a data compression circuit, a data decoding circuit, a microprocessor, a memory, and Interface circuit 1 and 2; pick up the hook circuit, DTFM receiving circuit, caller ID circuit and pick up the hook detection circuit through the interface circuit! Sub-speech voice box is a combination of computer and telephone use of new USB voice products.
