4 FXS Port 1 RJ45 Ethernet Connection Front Panel Activity LED Network Activity LEDs Point to Point, Zones, Groups, All Call UDP, Multicast Caller ID Information - Various Options Peer-Peer, No Server Required Auto Destination Programmable DTMF Dial Select - 1024 Zones, Groups 1 to 11 Digit Dial Plans Two Way – Transmit / Receive POE 802.3 af, Class 3, or Local Power 24 VDC Can Use DHCP Servers to Acquire IP Addresses Easy Windows® Based Setup Relay Closure for Ringing Indication, Audio Indication, Door Unlocking, etc,