Wireless Devices/Networks in Practice This  requires some research on the technical specifications of wireless networks or wireless devices. (a) Choose a current cell phone from three of these manufacturers: Nokia, Samsung, Apple, LG, Huawei, Sony, Blackberry, Motorola, or another of your choosing. Describe the wireless and cellular technologies and the frequency bands supported by each one. (b) Name at least three mobile service providers in your country. Which cellular technologies are currently supported by the networks? (c) Which of those three mobile service providers charge for data and what are the charges for a typical consumer plan (not business)? Why do you think some providers have stopped offering unlimited data plans?