Evolution of GMR-1 (GeoMobile Radio Services).
GMR-1 for circuit service (CS) is a standard published jointly by European Telecommunications Standards Institute (ETSI) and Telecommunications Industry Association of the USA (TIA), February, 2001.
Commercial service has launched in 2001 through Thuraya system and satellite covering middle east and Europe.
- Satellite was delivered by Hughes Space and Communications (HSC, now part of Boeing).
- The ground network, equipment and user terminals (UT) were developed and delivered by Hughes Network Systems (HNS).
- UT supports both GMR-1 and GSM (phase 2).