| Automatic   polling and programming software included | 
     | 2 Amp relay contacts for   door/gate or SL-2 strobe light control | 
     | SIP compliant | 
     | Outbound Proxy, Authentication   ID, Peer to Peer, VLAN Tagging | 
     | PoE powered (class 1, <4   Watts) | 
     | Automatic Noise Canceling   (ANC) for clear audio, even in noisy environments | 
     | Meets ADA requirements for   Emergency Phones: | 
     | Automatically lights the “Call   Connected” LED | 
     | Transmits a unique location   I.D. code or voice announcement | 
     | Grade 2 Braille label for the   visually impaired | 
     | Non-volatile digital voice   announcer with 28 seconds of voice memory | 
     | Handsfree operation | 
     | Dials up to 5 emergency   numbers | 
     | Cycles through backup phone   numbers on busy or no-answer | 
     | Hangs up on busy signal,   time-out or touch tone command | 
     | Extended temperature range of   -40°F to 140°F | 
     | VoIP eliminates the need for   “Push to Talk” mode | 
     | Network downloadable firmware | 
     | Diagnostics for testing   microphone, speaker, and relay | 
     | Enhanced Weather Protection   (EWP), EWP products are designed to meet IP66 Ingress Protection Rating, see   DOD 859 |