- SIP compliant (see compatible IP-PBX Phone Systems / Service Providers) - Multicast paging compatible - 126? wide viewing angle - H.264 and MJPEG video compression - Dual-Stream HD video allowing for up to two 1080p video streams - Selectable video resolutions: 352 x 288, 704 x 526, 720p and 1080p - Remotely programmable via Web GUI - Gigabit Ethernet for up to 1000 Mbps - 2 Amp relay contacts for door/gate or optional SL-2 strobe light (DOD 242) - Blue backlit 316 stainless steel push button switch - PoE powered (class 2, < 6.5 Watts) - Automatic Noise Canceling (ANC) for proper operation in noisy environments - Network downloadable firmware - T-10 Torx security screws for added security - Can be used with optional RC-4A Secure Relay Controller (DOD 582) - Handsfree operation - Vandal resistant 316 stainless steel prevents corrosion - Laser etched graphics on model X-35-SS - Cycles through up to five backup phone numbers on busy or no-answer - Extended temperature range: -40? F to 140? F - 316 Stainless Steel - Volume adjustments for microphone and speaker - Flush mounts in a standard double gang electrical box (not included), or surface mount using an optional Viking Surface Mount Box (DOD 424) - Diagnostics for testing microphone, speaker, and relay