Feature 1. Built-in dynamic noise reduction, to achieve high-quality voice communications 2. With light on Metal Keyboard 3. Support two SIP account 4. High-strength cold-rolled steel housing and high-quality aluminum shell, impact resistant up to IK10 standard 5. Support RFID, remote and password door open 6. Access control, intercom and IP broadcast triple feature integration 7. Support SIP2.0, support SIP2.0(RFC3261) and related RFC protocol 8. Using Web online configuration, easy to manage 9. Support safe mode, and can be upgrade the software. Specification Button: 12 full keypad with light and one handset free button or speed dial button RJ45 network port x2: network x1 (Support 802.3af Class 1 POE) PoE: 802.3af (Class 0 - 12.95W) 48V/380mA(Not a standard design) Master chip: Broadcom Audio Audio Amplifiers: 2.5W Powered: 12V+-15%/1A DC or POE Material: Cold-roll steel sheets, Aluminium alloy Weatherproof degree: IP55 Humidity: 10%-95% Temperature: -40~70℃ Product Size: 230*126*76.5 mm N. W: 1.6kg