Símskiptistöð

Símskiptistöð, often translated as a telephone exchange or central office, is a telecommunications facility where telephone lines are connected and switched. It serves as the central hub for routing telephone calls within a local area and connecting them to the wider public switched telephone network. In its traditional form, a símskiptistöð contained electromechanical switches that physically connected callers' lines when they dialed a number. Operators would also work in these facilities, manually connecting calls using patch cords on switchboards.

Modern símskiptistöðvar have largely transitioned to digital switching technology. These digital exchanges use computers and software to manage call routing and connections, offering greater efficiency and a wider range of services. They are crucial for maintaining telecommunication infrastructure, enabling voice calls, and increasingly supporting other data services like broadband internet. The physical location of a símskiptistöð is vital for network performance, as proximity to subscribers minimizes signal degradation and latency. Despite the rise of mobile communication, central offices remain essential components of the global telecommunications network, evolving to accommodate new technologies and services.