- The K-1900-7 panel phone will auto-dial a 1-32 digit programmable phone number each time the handset is lifted. - The unit will Touch Tone or pulse dial and will not auto-dial on incoming calls. - The K-1900-7 housing consists of a heavy gauge stainless steel panel an armored cable a heavy duty handset and an all metal cradle. - The K-1900-7 can be easily Touch Tone programmed at the shop or installation site. All programming is stored in non-volatile memory. - Operates on analog PABX and key system extensions or analog Centrex and CO lines - Programmable 6 digit security code - 36 inch vandal resistant cord - Line-Powered