CLASS I WTR-11-V-H WATERTIGHT IP RINGDOWN TELEPHONE atexlogo1.jpg (320Г—275) Guardian’s WTR-11-V-H Hazardous Area Watertight IP Ringdown Telephone has been designed to provide dependable service in hazardous areas. In addition to being certified for use in Class I, Division 2 applications, it has Type 4X & IP66 ratings which makes this series of models ideal for use in offshore, dusty or corrosive atmospheres. Lift the handset and the call is dialed to its assigned location. IP Features • PoE 802.3af enabled (Power-over-Ethernet) or alternate power source • Compatible with most SIP-based IP-PBX servers that comply with SIP RFC 3261 • Network web management • Guardian Discovery Utility makes it easy to detect, locate and launch the web based configuration screens • Product self diagnostic testing available through web interface • Network adjustable earpiece volume and microphone sensitivity • Network downloadable firmware • Remote program