The Fonix 7000 hearing aid testing system performs electroacoustic testing and verification of hearing aid performance in accordance with various ad hoc and international standards.http://www.frye.com/wp/wp-content/uploads/2013/08/7000broch.pdf RTEMS plays a key role in the 7000’s software by providing a device driver framework and OS services such as hard scheduling, threading, interrupt management, timers, locks, and message queues.

Aaron J. Grier was the lead software engineer for the Fonix 7000.