'- Up to 9 user-stored messages and 25 Watts driving power (802.3at)- Provides direct drive for up to two 8 ohm horn speakers- Compatible with most SIP-based IP PBX servers that comply with SIP RFC 3261- Can be configured to listen to multicast address and port number combinations to form paging zones- Support for G.722 codecs- 802.11q VLAN tagging- Configurable sense input for use with fault detection or lighted button kit- Configurable event generation for device health and status monitoring- Optional direct connect RGB strobe kit connection- HTTP command interface- 10 channel prioritizes Multicast ports- Delayed page support- Cisco SRST- Dual speed Ethernet 10/100 Mbps- PoE 802.3at/af enabled- Line in for background music- Add 011068 Cyberdata Loudspeaker (speaker not include)