Description:?- Viking Stainless Steel Handsfree Telephone With Keypad And Enhanced Weather Protection- Vandal Resistant Features: 14 Guage, Louvered, Stainless Steel Faceplate With Stainless Steel Speaker/Mic Screen, Heavy Duty Metal Keypad And Call Button- Enhanced Weather Protection- Yellow In Use Led- Volume Adjustments For Microphone And Speaker- Advanced Call Progress Detection: Disconnects On Busy Signal, Return To Dial Tone, Cpc Reorder Tone, Maximum Call Time Out And Selectable Silence Time Out- Selectable Auto-Answer Feature- Selectable Push Button Disconnect- Zinc Plated Steel Rough-In Box With (2) 3/4 Conduit Knockouts- Optional Ve-6X7 Surface Mount Box Available- Selectable Maximum Call Time- Selectable Vox Switching Speed- K-1700-3-Ewp Conforms To Nema Requirements- Made In The Usa- 1 Year Manufacturer's WarrantyVkk17003ewp