Interface: USB Cable Interface: RJ11 port Standards: 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.42/V42bis and MNP2-4/5 Fax: EIA 578 (Class 1) with V.17, V.29, V.27ter, Group 3 Parts: 1 year limited Labor: 1 year limited