1RU digital intercom stations for use with Matrix Plus 3 digital intercom systems. The ICS-1016 features 32 pushbutton keys that can be programmed for talk, listen, or talk-with-listen. Jacks are provided for a headset and a gooseneck microphone, with a mic/headset selector switch and auto-sensing when a gooseneck mic is inserted. Full-range, integral speaker with volume control permits monitoring of any selected listen keys. Pushbutton switches for speaker on/off, mic on/off, call/listen level and listen level up and down are provided. Gain trim, side-tone and speaker-setup controls are accessible on the rear panel. These stations give the user an excellent balance of high performance and value. They are ideal for use with the MicroMatrix digital intercom system and with the larger compact 72 and system 200 intercom frames. The ICS-1016E has 30 talk/listen buttons with 2 clear buttons.