HISTORY...

In 1982, the (CEPT) created the Groupe Spécial Mobile (GSM) to develop a standard for a mobile telephone system that could be used across Europe. In 1987, a was signed by 13 countries to develop a common cellular telephone system across Europe.
In 1989, GSM responsibility was transferred to the (ETSI) and phase I of the GSM specifications were published in 1990. The first GSM network was launched in 1991 , with joint technical infrastructure maintenance from Ericsson. By the end of 1993, over a million subscribers were using GSM phone networks being operated by 70 carriers across 48 countries.thus the use is precisely increasing!