CD-011272: CyberData · Residential SIP-enabled IP Indoor Flush Mount Intercom with Night Ringer Ideal interior door entry and 2-way communication device Applications: access control - door entry phone - emergency phone. SIP-enabled IP Indoor Flush Mount Inte with Night Ringer Ideal interior door entry and 2-way communication device Applications: access control, door entry phone, emergency phone, mass notification Cut-in box design for easy flush mounting Microphone sensitivity and volume adjustable Use 2 SIP extensions for Night Ringer configuration Powered by 802.3af PoE Adaptive full-duplex voice operation Network web management and firmware downloads Dry relay contact for auxiliary control Peer to peer capable Door closure and tamper alert signal Speaker Output Power: 1W