Rankin Communication Systems has been serving Central Iowa since 1974. We are located in Johnston, Iowa, but we provide service throughout the entire state. Get connected to the world with the help from our professionals. Going to Great LengthsWe go to great lengths to ensure that we create a communication system that works for you and is specifically tailored to meet or exceed your individual needs.Our team of experienced technicians can work with you to help create a telephone system that will be perfect for your business needs.