The Ameriphone DIIIP Text Telephone (TTY) with text answering machine and built-in printer is a top-of-the-line advanced communication device for deaf and hard-of-hearing people. Features 51-key full-size PC-style keyboard Bright, easy-to-read display High-speed printer with three print sizes Text answering machine with two programmable personalized text greetings Extra-bright visual ring indicator Flexible acoustic coupler works with most handset shapes "Express Type" lets you type ahead of the actual transmission