- Viking simple emergency phone without auto dialing- Door or gate communication - Commercial, industrial and residential door security - Truck stop/gas station fuel island communication - Business delivery entrances - Use in conjunction with a Viking Hot-Line Dialer on C.O. lines or analog PABX/KSU stations - Use on any programmed ringdown circuit of an analog PABX/KSU station - One year manufacturer s warranty - Handsfree or handset available - Phone line powered - No dial pads - Designed to mount in a s