The telecommunications industry has gone through many changes in its history from telegraphic messages in the 1830s to high-speed access to the Internet in the 2020s. But the rate of change from a technological viewpoint has significantly increased in this century.

Mobile communications in particular has been subject to major changes in capabilities and infrastructure. The second generation of mobile systems were first deployed in the 1990s while the third generation came in the early 2000s. Now operators already have plans to retire their earlier systems and replace them with 4G and 5G networks. For example, Digi Communications has recently announced it has shut down its 3G network in Romania. The UK plans to phase out 2G and 3G by 2033 but some UK operators including Vodafone and EE has revealed plans to phase out 3G by 2024.

Meanwhile, TDC NET in Denmark has implemented its first Standalone 5G (5G SA) mobile service having launched a non-standalone service three years ago. Vodafone launched its 5G SA service in several UK cities in June of this year.

5G SA does not rely on a neighbouring 4G (LTE) network and can therefore provide the eco-system required for new innovative services.

PTT offers a range of online courses that will keep you up-to-date with telecoms technological changes including those covering 4G and 5G mobile systems.

For individual users, to celebrate our 30th anniversary, we are offering 30% off our bundle of 5 online courses covering mobile and wireless networks and services.