– 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
– Available in red or ash
– Optional Q170600 ringer
– 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 VK-K-1900-6 fits standard 500, 554, 2500, and 2554 set phones