Product Type - Exchange; Warranty - 1 year limited; System Requirements; -PC and CPU 2.8 GHz Pentium IV or faster processor, 512 MB RAM, 400 MB free hard disk space, and a CD-ROM drive
LAN, PSTN and analog (in/out) interfaces with multi interface audio bridge ability; Built-in 3-ch adaptive echo canceller for full-duplex communication and noise reduction