Símskiptistöðvar

Símskiptistöðvar, also known as telephone exchanges, are central switching points in a public switched telephone network (PSTN). They are responsible for connecting telephone calls between different subscribers. When a person makes a call, the signal travels to their local exchange, which then routes the call to the appropriate destination exchange. This process involves complex electromechanical or digital switching equipment.

Historically, manual telephone exchanges required human operators to physically connect calls using plugs and jacks. Modern exchanges are almost entirely automated, utilizing digital technology to manage vast numbers of connections efficiently. These digital exchanges can handle voice calls, data transmission, and other telecommunication services.

The primary function of a símskiptistöð is to establish and maintain a communication path between two or more telephones. They are crucial for the functioning of the global telecommunications infrastructure, enabling individuals and businesses to communicate across local, national, and international distances. The network of interconnected símskiptistöðvar forms the backbone of traditional telephony.