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Highlights

1982 CEPT forms Groupe Spéciale Mobile (GSM) and recommends reservation of frequencies in 900 MHz band for future pan-European cellular system.

1987 Memorandum of Understanding (MoU) signed in Copenhagen by operators from thirteen European countries.

1992 First commercial GSM networks start to come into service.

1992 First international roaming agreement signed between Telecom Finland´s and Vodafone (UK´s) GSM networks.

1992 Australian operators are first non-European operators to sign the MoU.

1993 Status report: thirty GSM networks in (end) service worldwide with more than one million customers. Seventy MoU members from forty five countries.

1994 Status report: sixty GSM networks in service (end) worldwide with more than four million customers. Over one hundred MoU members from sixty countries.

1995 Status report: one hundred and twenty (end) GSM networks in service worldwide with more than twelve million customers. Over one hundred and fifty MoU members from ninety countries.