Final answer:
The telephone was a significant technological advancement that revolutionized communication. Telephone technologies have evolved over time, including improvements in microwave transmission, communication satellites, and other wireless technologies.
Step-by-step explanation:
One important technological development that completely changed communication was the telephone. It supplanted the telegraph as the most popular means of communication and made it possible for people to make phone calls over longer distances. Over time, advancements in microwave transmission, communication satellites, and other wireless technologies have all contributed to the evolution of telephone technologies. More consumer choice, more affordable phone calls, higher-quality phone service, and ancillary technologies like free Internet-based calling and video calling have all resulted from these advancements.