SIP Loud Ringer with Visual Ring Indication PoE powered audio device for providing loud ring and visual ring inidcation for SIP VoIP phone systems Four programmable ring patterns Programmable Automatic Gain Control AGC , which automatically compensates the ring volume for background ambient noise Applications use the loud ringer for noisy or variable noise environments and the visual ring indicator for quiet areas 2 Amp relay contacts for LPL 1 or SL 2 strobe light control SIP compliant Class 2 PoE with consumption 6.5W Network downloadable firmware Surface mounts to a single gang or 4x4 electrical box, wall, or post Remotely adjust ringer volume Maximum Sound Pressure 93dB SPL at 1 meter Audio Codecs G.711u, G.711a, G.722