The infrastructure of 2G and 3G cellular networks are similar ... voice and another for packet-switched data. In the subsequent 4G/LTE architecture, voice and data are both based on IP packets.

Who is still using, or trying to use, 2G and 3G networks, why do they have to be turned off in the first place, and what if any alternatives are there when no 4G or 5G coverage is available?

2G, first introduced in ... for many of their applications. 4G is the fourth generation of mobile phone communications standards. It is a successor of the 3G and provides ultra-broadband internet ...

There are several ways of providing mobile broadband including 3G, 4G and 5G. 4G is the fourth generation of mobile phone technology. 2G technology was suitable for making calls and sending text ...

making it the last player to close 3G services and have only 2G, 4G and 5G networks in the country. Bharti Airtel, India’s second largest operator which has about 90 million 2G customers ...