The Barix Annuncicom MPI400 is an Audio over IP endpoint and gateway for VoIP/SIP, HTTP and RTP streaming, and traditional paging or intercom systems. It supports PCM, AAC+, MP3, OPUS, G.711 and G.722 codecs, with two microphone inputs, mono line input, mono speaker or balanced line output, two relay outputs and two dry-contact inputs. The unit provides 10/100 Mbps Ethernet, PoE or 24 VDC power, USB interfaces and web configuration.