Most people have at least a simple, if not sophisticated, mobile phone. These devices are convenient to carry around and you can use them on the go as long as there is network coverage wherever you arE it use radio waves to transmit calls. Our mobile devices get access to a cellular network through a mobile phone operator. You have unlimited mobility because you’re not connected to a wire, but keep in mind that you have to be able to connect to your provider’s network. If you’re in an area where your provider has spotty or no coverage, you can be susceptible to dropped calls or no service.