The document discusses Canada's communication system and how it has evolved over time. It notes that Canada requires an efficient communication system to connect its small population spread over a vast geographic area. It traces the development of communication technologies in Canada from early wired telephones to wireless/cellular networks and the internet. Most recently, it describes how communication technologies are converging, with differences between mediums like phones, television, and internet blurring as they integrate with one another. This convergence represents one of the most significant changes to Canada's communication landscape.