EN

Virtualised telephone system

14 MWh/y

Virtualised telephone system

 

In 2018, Skyguide’s switchboard was successfully converted from ISDN to IP and adapted to the operator’s service standards. The company took the opportunity to virtualise at the same time the internal servers, which handle telephone-system applications such as greeting messages and answering machines.

 

The 14 physical servers that were previously distributed between Geneva, Dübendorf, Lugano and Berne were replaced with a single, energy-efficient virtual server in Geneva. This reduced the power consumption of the central telephone system by about 40%, which corresponds to an annual saving of 14 MWh.