Data mode:
1) Line speed: 300bps - 56, 000bps
2) Standard compatibility: ITU-TSS V.92, V.90, V3.4, V.32bis, V.32, V. 22bis, V.22m   V.23, and V.21; Bell 212A and Bell 103
3) Error correction: ITU-T V. 42 LAPM and MNP 2-4
4) Date compression: ITU-T V. 44, V. 42bis and MNP5
5) Flow control: RTS/CTS and XON/XOFF
Fax mode:
1) line speed: 2, 400bps - 14, 400bps
2) Standard compatibility: ITU-TSS V. 92
3) Command set: TIA/EIA 578 Class
Voice mode:
1) Full-duplex, echo-cancelled digital speakerphone
2) Voice compression: ADPCM, Linear and CLI
3) Sampling frequency: up to 11kHz
4) IS-101 voice commands
System requirements: Win98 / ME / 2000 / NT / XP