The most well-known function of cell towers is to bring about the contemporary mobile phone era, but they are also playing a significant role in the future of networks. They are the most established form of communications infrastructure and still provide the finest wireless coverage.
That includes both voice and data signals, of course, but also wireless broadband, TV, radio signals, and more. Towers are also being used as centralized hubs to communicate with remote networks of transmitters, monitors, and other gadgets—giving them a new importance for the future as internet of things (IoT) technologies develop.