September 7th 1987 was the day when GMS network was born.
That day 15 phone companies agreed to build mobile networks based on the Global System for Mobile Communications. Once a privilege, today cell phone is a very usual thing or rather a necessity which is available for everyone. There are more than 2.5 billion GSM subscribers worldwide that send more that 7 billion text messages everyday.
After 20 years the progress in this sphere is obvious.