Modem Card PCI High Quality Modem Manufactured by: 3COM Model/Part : 3CP2976 Device Type: Fax / modem Enclosure Type: Plug-in card Interface Type: PCI Connectivity Technology: Wired Max Transfer Rate: 56 Kbps Transmission Mode: Full-duplex 56K Technology: X2, V.90 Protocols & Specifications: Bell 103, ITU V.21, Bell 212A, ITU V.22, ITU V.29, ITU V.32, ITU V.32bis, ITU V.34, ITU V.90, ITU V.17, ITU V.23, ITU V.27ter, x2 , Hayes AT command set Error Correction Protocol: MNP-4, ITU V.42, MNP-2, MNP-3 Data Compression Protocol: MNP-5, ITU V.42bis Max Fax Transfer Rate: 14.4 Kbps Voice Communication Support: Voice mail, speakerphone, VoIP Features: Auto answer, auto call detection Interfaces: 1 x modem - phone line - RJ-11 - 2 Compatible Slots: 1 x PCI - full-length SKU: 23RKG1OBQB8S