1,competitive pice and super service; 2,professional OEM/ODM service, 3,Date/Fax/Voice MODEM. Description:Date/Fax/Voice MODEMFeatures:l 56kbps data/fax/voice external modeml Steady performancel Plug and playl Suitable to desktop systemsl Operating system supported: Windows 9X, NT, 2000, XPSpecifications:l Communication protocol: ITU-T V.34, 33600 to 2400bps ITU-T V.32bis, V.32 ITU-T V.22bis, V. ...