Built-in user controlled volume “LOUD” button for ADA mandated volume control (user must have control of volume amplification AND volume must reset to normal with hang up to meet ADA requirements).
Cold rolled stainless steel provides rugged vandal resistant telephone housing designed for inmate use
Confidencer technology, built into every dial, filters out background noise at the user's location, allowing better sound to the called party
All-in-one electronic dial features modular incoming line and handset connections for quick maintenance. Carbon (HS) and DuraClear® (DURA) Handsets have separate 4-pin connections.

Heavy chrome metal keypad bezel, buttons, and hookswitch lever withstand abuse and vandalism
Armored handset cord is equipped with a steel lanyard (1000# pull strength) and secured with a 14 gauge retainer bracket for maximum vandal resistance
Handset has sealed transmitter and receiver caps,
suitable for heavy use and abuse locations
Pin-in-head security screws minimize tampering
Hearing aid compatible and FCC registered
US: 1DATE05BITC-254, IC: 3267A-ITC254