TM-IP5600 3.0 is a 56k Data/ Fax soft Modem which is support to ITU T V.92. It adopted the technology of Motorola Modem, & TP-Link optimizes it based on the condition of China. This Modem can be used in the following Operating System: Windows 98, Windows ME, Windows NT, Windows 2000 Windows XP & Linux. & you can operation this Modem by using Hyper Terminal. This Modem can prevent surge-damaged, & it have get the authentication of China Compulsory Certification (3C), FCC & CE, you can use it safety & stably. Data mode capabilities: ITU T V.92, 56 Kbps ITU T V.90, 56 Kbps ITU T V.34, 33600 to 2400 bps ITU T V.32bis, V.32 ITU T V.22bis, V.22 ITU T V.23, V.21 FAX mode capabilities: ITU T V.17, V.29, V.27ter, & V.21 Ch 2 Group 3 FAX V.42 & NMP2-4 error correction (LAPM & MNP) V.42bis & MNP class 5 data compression Operating system support: Windows 98, ME, NT, 2000, XP, Vista & Linux EIA / TIA 578 class 1 standard for AT command set