what are some things that allow people to communicate without having to be in the same area (economics)

Science has made huge progress in every field. If we talk about the ways of communication between people who are not in the same area, it was considered insane few years back; but now this is a reality that people who are not at the same place can communicate with each other just like they are sitting in front of each other.

There are different methods or ways through which people who are not at the same place can communication easily.

The most simplest and conventional method is the use of Telephone. But now, with the progress in Technology and with the use of Internet, there are a lot of communication devices that uses different apps to talk to each other. They are used to talk either through the audio or with the Video as well. Using your mobile phone, or laptops, or other communication gadgets, you can even see the other person while talking to him. So Telephones, Telegraphs, Internet, Cell phones, etc are used to communication without having to be in the same area.