Internet, Wi-Fi and phone
4G
Abbreviation for fourth generation
In short and in plain language
4G is the fourth generation of phone networks.
It brings fast web access to phones and tablets.
To make calls on it, a phone needs a special feature.
Definition
4G stands for the fourth generation of mobile networks, whose standard is called LTE. It brings fast mobile internet to phones and tablets. To make calls over these networks, the phone needs VoLTE.