Related Terms: V.21, V.29, V.34, V.17, V.90, V.32bis, V.35, V.23, V.22bis, V.32, B-channel, Ds0, B channel, Ds-0, Narrowband, Bearer channel, D channel, D-channel, Basic rate isdn, Channel bank, K56flex, Bandwidth-on-demand, Integrated services digital network, V.32 bis, Voice grade, E-1, Ds-1, V.92, Ds1, T-1, G.723, Digital channel, Isdn - integrated services digital network, Ds-3, Fractional t-1, Pri, T-carrier, Ds3 , Primary rate interface, Modem speed, Isdn line, Dso, Wideband, Broadband, Adn, G.703, Basic rate interface, Asymmetrical digital subscriber line, Bri, Bonding