The Algo 8138 is a PoE SIP compliant multicolor LED IP strobe light for Voice over IP (VoIP) and supports SIP Ring, SIP Subscribe Notify, Dry Contact Closure, and Multicast, independent of an IP telephone (no SIP phone required). The Algo 8138 features enhanced multicast options, dedicated "Emergency Alert" extensions, different strobe colors and patterns for different extensions, and more. Supports TLS, SRTP, SIP TCP, DNS SRV, and CDP/LLDP, and support for InformaCast (requires purchase of an InformaCast license; not included, sold separately). Multiple high-intensity long-life LEDs provide for alerting and notification of telephone, emergency, safety and security events (e.g., OSHA, ADA). The 8138 features color-configurable flash patterns; including strobing effects, rotating lights, and non-flashing illumination (solid color, no flash) to suit any application, particularly in noisy or noise sensitive environments. No colored lens is needed because the Algo 8138 contains super bright long life Red, Blue, Amber, and Green LEDs. The 8138 can be deployed in any number for mass notification applications (e.g. weather evacuation, workplace safety or security notification, etc.) and can be combined with a variety of Algo IP endpoint speakers, strobes, and paging adapters to provide a comprehensive audible and visual alerting solution for small / large enterprise / campus applications. Requires Power over Ethernet (standard 802.3af) - if PoE is not available, a PoE Injector will be required (not included, sold separately). Does not support direct power connection - PoE Only. Ask your dealer about PoE if you need assistance understanding that technology or for technical support. See manufacturers website for specifications, new features, and required firmware updates. Web-UI programming or supports provisioning. A basic understanding of computer networking and Voice over IP experience is highly recommended.