usb modem 56kbps external usb voice/fax/data modem this 56kbps modem provides v.90 and k56flex standards for high speed file trafer, fax send/receive and internet login. the modem has error correction and data compression capabilities for reliable and fast tramission. the modem comes with complete software packages for voice mail and fax. small enough to fit into a pocket, this modem is the perfect solution for desktop and notebook compute. as a usb device, it is also the easiest modem to itall. feature summary : 56kbps voice/fax/data modem v.90, v.92 & k56flex standards, auto-detect send/receive faxes from compute or fax machines at command set error correction and data compression standards low power coumption and automatic sleep mode 2m (6-foot) usb a-to-b cable provided for connecting to pc technical standards : usb2.0 standard compliant itu-t v.90 56kbps standard k56flex 56kbps standard itu-t v.34 data tramission standard itu-t v.32bis data tramission standard itu-t v.22bis data tramission standard itu-t v.22a/b data tramission standard itu-t v.23 data tramission standard itu-t v.21 data tramission standard bell 212a and 103 industry at command set standard itu-t v.42 lapm, mnp 2-4 error correction itu-t v.42bis and mnp 5 data compression itu-t v.80 and rockwell video synchronous access standard itu-t v.17 fax tramission standard itu-t v.29 fax tramission standard itu-t v.27ter fax tramission standard itu-t v.21 channel2 fax tramission standard system feature : data mode : itu-t v.90,v.92 and k56flex auto-detect itu-t v.34, v.32bis, v.22bis, v.22a/b, v.23, v.21 compatibility speeds of 56000, 33600, 31200, 28800, 26400, 24000, 19200, 16800, 14400, 12000, 9600, 7200, 4800, 2400, 1200, 300, 75 bps dte throughput up to 115200bps bell 212a and 103 industry standard at command set v.42 lapm, mnp 2-4 error correction v.42bis and mnp 5 data compression v.80 (h.324 video conferencing interface) and rockwell video synchronous access modes support host-based communication protocol fax mode : itu-t v.17, 29, 27ter and v.21 channel2 compatibility group 3 fax send and receive eia class 1 speeds of 28800, 14400, 12000, 9600, 7200, 4800, 400bps fax on demand and retrieval voice mode : tone detectiogeneration and call discrimination supports digital telephone awering machine, voice annotation and audio recording playback applicatio multiple voice mail boxes, with software bundled operating system support windows(98,98se,me,2000,xp,vista,windows 7) "批发56k调制解调器 (图),usb fax modem"的安装方式为外置，接口类型是usb，网络标准为vdslcpe，oem是不可oem，类型为桌面型modem，型号是fm-01，品牌为中性，传输速率是56kkbps，质保为一年，芯片是conexant(rockwell)