A butt-set is used to test the telephone line at selective points such as the telco NID box or where the line connects to the phone or payphone. The butt-set can also be used to monitor a phones activity on the line such as dial outpulsing.
Integrated circuit design
Tone (DTMF) or pulse (Rotary)
Line powered for talk, monitor or dialing function
Built-in ringer
Built-in polarity guard
Last number redial
Mute button. This button operates only as long as user keeps it depressed
Includes polarity test. LED lights up green when polarity is correct
Talk/Mon (monitor) switch (MON position allows line monitoring without disruption)
Great product, fast shipping. Unfortunately it does not fit my pay phone.
**Thanks for the great review -Sorry to hear that the coinbox did not fit- this part is compatible with virtually any Bell Style payphone including GTE/Quadrum and Western style therefore should fit unless you have something different. Please reach out to us so we can help you.