- Up to 25 unique user uploadable bell files that can be used in up to 250 scheduled events- Up to 25 stored messages can be played through paging groups- Voice prompting and password controlled zones- NTP-based internal clock- Multicast output- Loud ringer - second SIP extension- DTMF control of zone selection- Delayed page support - buffer call- Line-in connection for background music multicasting- Line-out connection to support analog amplifiers- User uploadable audio files- Web-based configuration and