Developed by Group Spéciale Mobile (founded 1982) which was an initiative of CEPT (Conference of European Post and Telecommunication).
Aim : To replace the incompatible analog system.
Presently the responsibility of GSM standardization resides with special mobile group under ETSI ( European telecommunication Standards Institute).
Full set of specifications phase-I became available in 1990.
Under ETSI, GSM is named as 'Global System for Mobile communication'.