A modem is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. Via normal telephone cable, tt is used for transmitting data, voice or sending fax instead of traditional fax machine.
1. 9-pin RS232 interface with speakerphone/microphone jacks. 2. V.92 protocol support, quick connect. 3. Downstream speed up to 56Kbps; upstream up to 48Kbps. 4. Support fax group 3; class 1. 5. V.80 & H.324 video conferencing. 6. V.44 data compression to make data transmission more faster.