Let's break down what LTE really stands for, and why it's still the unsung hero of today's mobile internet. LTE, short for Long Term Evolution, is the technology that powers 4G mobile networks.

called VoLTE (voice-over-LTE). Even so, a particular phone can choose to use a 4G modem, yet still use 3G-style phone connections. Until the 3G network is shutdown, that is. This is the crux of ...