Vandal Resistant Features: 14 gauge louvered 316 stainless steel faceplate with permanent laser etched graphics Stainless steel “Call” button Heavy duty metal keypad T-10 Torx security mounting screws Weather Resistant Features: Enhanced Weather Protection designed to meet IP66 Ingress Protection Rating (see DOD 859) Marine grade 316 stainless steel faceplate, screws and push button switch Switch internally sealed per IP67 Mylar speaker Self-draining mic mount Faceplate, mic and speaker gaskets Two sets of SPDT 2 Amp relay contacts for door / gate or camera control Secure Remote Relay Control using Viking RC-4A (DOD 585) Blue “Call / Status” LED indicator SIP compliant (see Product Manual for list of compatible IP-PBX phone systems) PoE powered (class 2, <6.5 Watts) Automatic Noise Canceling (ANC) feature for proper operation in noisy environments VoIP audio detection eliminates the need for “Push to Talk” mode 26 Bit Wiegand input for adding a Viking proximity card reader 26 Bit Wiegand output can connect to card reader input of an Access Control System Programmable to speed dial up to 250 numbers Cycles to roll over phone number on busy or ring-no-answer Program up to 1,000 keyless entry codes Program up to 1,000 proximity card numbers Keyless entry codes and proximity card numbers can be programmed to only allow access at specific times and day of week Call logging with time and date stamp Hangs up on busy signal, time-out or touch tone command Extended temperature range (-40°F to 140°F) Volume adjustments for microphone and speaker Selectable auto-answer feature for monitoring Remotely programmable Network downloadable firmware Self diagnostics for testing com, mic, speaker, and switch Zinc plated steel rough-in box with (2) 0.75? conduit knockouts included Flush mount using the included rough-in box or surface mount using a Viking VE-6×7 Surface Mount Box (DOD 424)