Some Historic Wireless Communication Systems

GSM class:

• 1981 NMT 450
• 1986 NMT 900
• 1992 GSM
• 1994 DCS 1800
• 2000 GPRS

OTHERS

• 1983 AMPS
• 1991 D-AMPS
• 1991 CDMA
• 1993 PDC

Finally they merged into IMT-2000 in year 2001.

Next wave is Fourth Generation (Internet based).