80071 External Hardware RS-232 Modem V.92 Data Voice Fax Longshine

- V. 92 protocol support, quick connect
- Full speaker phone function
- Hardware-based modem controller
- Up to 56Kbps downstream and 48Kbps upstream data rate
- Support fax group 3: Class 1
- Supports telephone answering machine (TAM) function and telephony services
- V. 80 and H. 324 video conferencing
- V. 44 data compression to make data transmission more faster