Since the late 1800s, we have been making calls using the Public Switched Telephone Network (PSTN). This analogue network is being phased out, and soon, all calls will be made over a modern digital network.
There are several reasons for the replacement of the PSTN network:
- The technology is old and will not be able to be maintained to provide a reliable service
- Digital phone networks offer faster, more reliable communication options
- As more people use broadband and mobile solutions, there is less need for the old PSTN network