ISDN adapter, modem 6411 6434 Basic rate ISDN Adapter with Asynchronous and Synchronous interfaces, V120, V110, V14, HDLC, PPP, MLP, X25, PAD and V21-V34 modem - Fax Support Contact Us Other Modems, ISDN, Video products Fiber Optic modems ISDN adapter, modem ISDN Primary Rate Multiplexers Dial-up and Base Band modems
