The telephone network uses packet switching technology, which is explained in more depth below, since it is the oldest and most well-known (wired) communication network. Do we not mostly communicate in this manner today?

The telephone network, which is the oldest and most well-known (wired) communication network, uses packet switching technology, which is covered in full below. Isn't this the main method of communicating a message today?

The telephone network is the world's oldest and most well-known (wired) communication network, and it makes use of the packet switching mechanism, which will be discussed in further depth below. Is this our primary method of contact in the twenty-first century?

Wireless Internet is gaining importance in today's developing countries. The widespread use of Wi-Fi has rendered LANs and other wired connections obsolete. Can the present scenario be characterised as favourable or negative?