The RTS Intercoms F.01U.298.903 is a 1RU 16 key IP Analog ONLY connection. Offered with full support for OMNEO-KP-3016 ONLY and support for a 4-wire analog connection. There are microphone inputs for dynamic or electret mics and a built-in speaker. The F.01U.298.903 has a user-replaceable XLR headset connector with 4- or 5-pin options available.