A service provided by NITEL through which one can dial any number one wants whether it is a local, trunk or overseas is called the?

The service provided by NITEL that allows a person to dial any number they want, whether it is local, trunk, or overseas, is called the Standard Dialing System. This system allows users to dial any phone number they wish, regardless of location, by following a standard format for entering the phone number. This system is widely used by many telephone service providers around the world, and it makes it easy for people to connect with others regardless of where they are located.