Red Hot-Line Desk Phone with Non-Volatile Memory, Field Programmable. The K-1900 Series of Hot-Line phones are programmable to dial a 1-32 digit telephone number each time the phone s handset is lifted. The products may be programmed to Touch Tone or pulse dial and will not dial on incoming calls. The K-1900 Series phones are available in a desk or wall chassis, as well as in a vandal resistant panel phone configuration. A network insert dialer is also available, to convert standard phones into hot-line phones. Applications Catalog sales Information kiosks in malls Courtesy and customer service phones Automated tellers Hot-line reservation phones Replace leased Ringdown circuits Security and emergency phones (pools, etc.) Features Telephone line powered Hearing aid compatible amplified handsets Rotary handset volume control 1 - 32 digit programmable speed dial number Touch Tone and 10/20 pps pulse dialing Non-volatile E2 memory (no batteries required) Restricts fraudulent calls from hand held dialers K-1900D/W-2 available in red or ash Optional Q170600 ringer (Fax Back Doc 845) Operates on a C.O. line or analog PABX/KSU extensions Ring detection (will not dial on incoming calls) Programmable security code to enter programming mode Touch Tone programmable K-1900-6 fits standard 500, 554, 2500 and 2554 set phones.