What Does Electronic Switching System (ESS) Mean?
An electronic switching system (ESS) in telecommunications is a telephone switch which helps in establishing phone calls with the help of computerized systems capable of interconnecting telephone circuits and digital electronics. The invention of the transistor helped in the development of electronic switching systems. The electronic switching system is capable of troubleshooting on its own and can identify problems. However, it needs well-trained resources to monitor and maintain the systems. Modern telephone exchanges make use of ESS, which allows quick call establishment and call release.
Techopedia Explains Electronic Switching System (ESS)
In an electronic switching system, control of switching functions are programmatically added to the memory and the related actions are run with help of the controlling processor. There are mainly two types of electronic switching systems: centralized stored program control and distributed stored program control. In centralized stored program control, a single processor is used for the exchange functionality. In distributed stored program control, there is no single or central processor for the overall function. It rather makes use of a small number of processors to perform the task.