- 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