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The TS19 Portable Test Telephone, often called a “butt in,” is a self-contained, line-powered, portable handset used by installers, repair technicians, and other authorized personnel for line testing and temporary communications.
The TS19 Portable Test Telephone provides both DTMF (Touch Tone) and dial pulse output. The TS19 also provides last number redial, dual monitor impedance, an electronic ringer (on/off), and field replaceable line cords and belt clips.
This unit is equipped with the Banana Jack Cord set. This cord is equipped with a modular plug at one end and two banana jacks at the other with alligator clip adapters.