This User Guide provides information about setting up and using the following Polycom ViewStation products: • ViewStation H.323 with stand-alone IP • ViewStation H.323 with a Quad BRI network interface module • ViewStation 128 with single ISDN • ViewStation H.323 with a V.35 network interface module • ViewStation H.323 with Avaya DCP network interface module • ViewStation MP — ViewStation with Quad BRI or Avaya DCP with Multi-Point enabled software.