Our extensive line of Indoor and Outdoor Singlewire InformaCast® Intercoms delivers two-way communication and secure access control for your VoIP phone system. These devices are perfect for settings such as commercial/residential facilities, schools and universities, retail establishments, warehouse and manufacturing plants, SMB, parking garages and shipyards and so much more. Features - Optional red/green/blue/white strobe kit connection available (part number 011288) - Integrates with Network Dual Door Strike Relay Module (part number 011375) and Door Strike Relay Module (part number 011269) - Now with enhanced acoustic echo canceler - InformaCast® compliant - InformaCast® resiliency protocol - Capable of receiving SingleWire Informacast, SIP and Multicast messages - Plays audio from Multicast - PoE 802.3af enabled (Power-over-Ethernet) - SIP compliant - Full-duplex voice operation - Now supports SRST (Survivable Remote Site Telephony) in a Cisco environment - Streamlined case design - Optional weather shroud for even greater weather protection - Network web management and firmware download - Network adjustable speaker volume - Concurrent SIP and multicast paging - Dry relay contact for auxiliary control - Door closure and tamper alert signal - Downloadable alert, ringtones and callout messages