Self diagnostic reports via email (testing com mic speaker & switch)Automatic polling and programming software included2 Amp relay contacts for door/gate or SL-2 strobe light controlBlue �Call Connected� LED indicator (E-30/E-32-IP only)SIP compliant (see pg 2 for list of compatible IP-PBX phone systems)PoE powered (class 1 <4 watts)Automatic Noise Canceling (ANC) feature for proper operation in noisy environmentsVoIP eliminates the need for �Push to Talk� modeNetwork downloadable firmwareT-10 Torx security screws for added securityHandsfree operationMarine grade 316 stainless steel prevents corrosion on the stainless steel modelsLaser etched graphics on stainless steel modelsProgrammable to dial up to 5 numbers on busy or ring no answerCycles through backup phone numbers on busy or no-answerOptional Enhanced Weather Protection (EWP) EWP products are designed to meet IP66 Ingress Protection Rating see DOD# 859Hangs up on busy signal time-out or touch tone commandRemotely programmableExtended temperature range (-40�F to 140�F)3 different chassis or board only availableVolume adjustments for microphone and speakerE-10-IP and E-30-IP are flush mountable using the included rough-in box or can be surface mounted using an optional VE-5x5 Surface Mount Box (DOD# 424)E-32-IP flush mounts in a standard double gang electrical box (not included) or can be surface mounted using an optional VE-5x5 Surface Mount Box (DOD# 424)