The requirement is to maintain and support PTT device solutions based on commercial simulation environments, cockpit simulation hardware, and ancillary software. The contractor must provide services and equipment to install, maintain, and support new and existing PTT devices across cITD, eITD, and HITD classifications, with any new classifications defined and evaluated before inclusion. Support covers 142 ITDs and up to 17 Instructor Operating Stations at Joint Base San Antonio Randolph, TX; Columbus AFB, MS; Laughlin AFB, TX; Vance AFB, OK; Sheppard AFB, TX; and Fort Rucker, AL. The Government may modify device quantities or locations through contract modification and funding. The contractor must also maintain a common software interface to integrate current and future PTT software and hardware, cockpit simulation hardware, and on-premises network and data architecture hardware and support for deployed training systems.