The Barix Paging Gateway M400 connects smartphones, computers and tablets to analog and IP paging systems through a local Ethernet network. It provides an unbalanced left and right line level output via RCA connectors and a front panel headphone connection. The gateway supports G.711 uLaw and aLaw audio at 8 kHz and 24 kHz, RTP and SRTP transport, web based configuration, mobile web paging, zone selection and multi level message priority.