Impact of the ISDN Switch Off on Business Communications

Integrated Service Digital Network (ISDN) is a circuit-switched telephone network that transmits voice, video, data and other network services through the Public Switched Telephone Network (PTSN) digital circuits. According to the British Telecom (BT) announcement, ISDN and PSTN will be permanently turned off by 2025. Traditional landlines are becoming antiquated as we move into the […]