As of 2015, 4G calls have become a very attractive option; this technology is known as VoLTE. Does the possibility of making 4G calls already exist? What does VoLTE mean and what advantage do 4G calls have?
How does a GSM repeater work? Why do I need an outdoor antenna and an indoor antenna? Where do I mount the antennas and the splitter? In this article, you will learn how GSM repeaters are being installed.