The Model S in the Digital Business Phone [Alpha] EX Series is a space-saving model with a compact main unit. It supports INS Net64 and employs the [alpha] bus wiring method for streamlined wiring. This model supports cordless telephones, as well as those standard telephone sets which have many features such as a clear display, abbreviated dialing for up to 100 numbers, and single-touch buttons assigned for frequently used functions. It also has the advanced voice mail unit that can record telephone conversations as they are and send them as messages.