Telefonivõrgus
Telefonivõrgus refers to the telephone network in Estonian. It is the infrastructure that allows voice communication over distances using telephones. Historically, this network was primarily circuit-switched, meaning a dedicated physical connection was established between two phones for the duration of a call. This traditional network, often referred to as the Public Switched Telephone Network (PSTN), utilized copper wires for transmission.
In modern times, the telefonivõrgus has evolved significantly with the advent of digital technologies and the