äänipuhelupalvelut
Äänipuhelupalvelut, often referred to as voice calling services, are telecommunication functionalities that enable real-time voice communication between two or more individuals over a network. These services form the backbone of traditional telephony and have evolved significantly with the advent of digital technologies.
Historically, äänipuhelupalvelut were primarily delivered through circuit-switched networks, such as the Public Switched Telephone Network (PSTN).
Modern äänipuhelupalvelut encompass a wide range of features. Basic functionality includes initiating, receiving, and terminating calls.
The deployment of äänipuhelupalvelut is managed by telecommunication providers who maintain the necessary infrastructure, from local