WTS-501 Walker Clarity Phone Line Test Set-51323001

* TALK/RING/MONITOR switch conveniently located inside hand grip * Switchable tone or pulse dialing. Tone/Pulse switch located on inside of hand grip * High impedance monitor will not disturb data, conversations or signaling * Last Number Redial (31 digits maximum) * 10 number memory storage * 3 position Volume Control for up to 12 dB of gain * Protection against excessive voltage, transient ringer signals, and direct connection to most batteries and power supplies