High-impedance DataSafe. Operation in Monitor Mode. Data lockout protection. Data lockout Override. Over voltage protection. Over current protection. Two-way speakerphone for true hands-free conversations. Amplified speaker for hands-free monitoring. Audible ringer for callbacks. RainSafe in severe weather conditions. DropSafe - Passes 20-foot drop test. Meets Bellcore specifications. Tone & Pulse operation. For use with computerized voice response systems. Polarity indication in Talk mode. Speech signal levels compensated for loop length. PBX pause button. Stores nine 18 digit numbers in repertory dialer (speed dialing). Last number redial. Mute switch. Replaceable line cords and spring loaded belt clips. Replaceable 9V battery for powering speaker. Hearing aid compatible receiver
