Put the power of advanced technology at your fingertips with the deluxe Superprint 4425. This feature-packed TTY includes sophisticated capabilities, giving you more choices than ever! It features direct connect with two built-in telephone jacks and advanced calling features like auto-busy redial, three way calling, and TTY transfer. Call progress tells you if the phone you are calling is ringing or busy. Auto-Answer takes messages for you when you are unavailable.
More information: http://www.ultratec.com/ttys/printing/superprint.php