Data: V.92, V.90, V.34, V.32bis, V.32, V.22bis, V.22, V.23, and V.21 Data Error Control/Compression: V.44/V.42/V42bis and MNP2-4/5 Fax: EIA 578 (Class 1) with V.17, V.29, V.27ter, Group 3 V.80 video conferencing support
Max Transmission Rate
Windows Server 2016, Server 2012 R2 / Win 10 / Win 10 64 bit / Server 2012 / Win 8 / Server 2011 / Win 7 / Server 2008 / Vista / Server 2003 / XP / 2000 (Unimodem TSP / TAPI compliant), Mac 10.4-10.12§, and Linux 2.4.20 kernel or higher
Intel Pentium III 600 MHz or equivalent, 128 MB RAM, 5 MB hard drive space
2x or better CD-ROM drive
Analogue phone line
Voice features require voice firmware available at www.usr.com/support/5637. Voice messaging requires additional third party software. Software included with the product enables data / fax support only. Voice features are available on Windows 10 after installing the Cumulative Update for Windows 10 Version 1607 (KB3206632). § Fax features no longer supported in macOS Sierra Version 10.12.