MAIN CHIP: SMARTLINK2801   Newly-Designed Internal Data/Fax Modem with Line Speed of Data   Operation Up to 56kbps,Specifications＿Chipset: Intel Data modulation rate: V.34bis, V.34+, ITU-T V.34, V.32bis,V.32,   V.22bis, V.22 and Bell 212A, ITU-T V.23, V.21 and Bell 103 Transmission: 56000, 33600, 31200, 28800, 24000, 14400, 12000, 9600, 7200, 4800, 1200, 1200/75 and 300bps Computer interface: PCI bus and plug-and-play Data compression: ITU-T V.42bis and MNP 5 Error correction: ITU-T V.42 and MNP 2, 3, and 4 ITU-T Group 3 compatible fax machines/modems ITU-T V.17 V.29 V.27ter V.21 channel 2300 14400, 9600, 7200, 4800, 2400bps   Class 1 fax interface     Operation: full duplex     Commands: extended AT command set   Test modes: Analog, digital and remote digital loopback with self-test Compatibility: Pentium 200(over) with MMX, CPU with PCI bus Auto-dialing: Touch-tone and pulse dialing, auto dial and auto answer Fully compliant with V.90, V.34 bis, V.32, V.32 and V.22 bis specifications Compatible with Windows 95/98/2000/XP/ME/NT4.0 operating systems and most PCI bus compatible systems Software upgradeable     Support variable sample rates via the SLOTREQ protocol and valid tag bits Low latency GPIO data transfer   Support modem wake-up on ring from D3cold Advanced power management support   PPMI (PCI: Power Management Interface)