- PoE powered (class 3, <13 Watts)- Use with an optional BTR-3 wireless remote to activate calls or adjust speaker volume- Paging prioritization- Plays audio from multicast- SIP endpoint or multicast group member- Supports up to 10 multicast paging groups- Add an optional SL-2 blue, green, red or amber strobe light (see DOD 242)- Blue call status LED indicator- SIP compliant (see product manual for list of compatible IP-PBX phone systems)- Automatic Noise Canceling (ANC) feature for operation in noisy envir