Power-packed with advanced capabilities, the Supercom 4400 is the most sophisticated non-printing TTY. Save and review conversations, Auto-Answer messages, and memos in its 32k memory. Store hundreds of telephone numbers by name - the Supercom 4400 can dial for you! Its User-programmable Relay Voice Announcer tells people they have reached a TTY, and asks them to use a TTY or dial relay. It even tells them the relay phone number that you have entered. It also includes Turbo Code for "real-time" conversations with interruption capability. Auto ID notifies everyone you call that you are using a TTY. You can directly connect your telephone line in one of two built-in jacks. You can even connect your own external printer.