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 controlSIP 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 firmwareMeets ADA requirements for Emergency Phones: - Automatically lights the