Präzisionsvorrichtungen
Präzisionsvorwahl, a German term often translated as "precision preselection" or "precision dialing," refers to a specific type of telephone dialing system that emerged in the early to mid-20th century. This system allowed for a more precise and automated connection to desired telephone numbers compared to earlier manual or semi-automatic methods. The core innovation lay in the ability of the switching equipment to interpret and act upon a longer, more detailed sequence of dialed digits.
This technology played a crucial role in the expansion and modernization of telephone networks. By enabling