- SIP Loud Ringer with Visual Ring Indication - PoE-powered audio device for providing loud ring and visual ring indication 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