ISDN Gradual Switch Off

The ISDN switch off is a planned event. The UK’s Public Switched Telephone Network (PSTN) and Integrated Services Digital Network (ISDN) networks turned off in 2025. This will mean that businesses who use these networks for their phone calls will need to make the switch.

The PSTN is a network of copper wires that was originally designed to carry voice calls. ISDN is a more advanced network that can also carry data and faxes. Both networks are outdated and are no longer able to meet the needs of modern businesses and consumers.

The switch off will be a gradual process, with different parts of the country being turned off at different times. BT, the UK’s largest telecoms company, has already begun the process of turning off its ISDN network. Other telecoms companies are expected to follow suit in the coming years.

Businesses relying on ISDN for their phones will need to make the switch to digital before 2025. Options available, including VoIP, which allows calls to be made over the internet, and cloud-based phone systems.

The switch off is a major change for the telecoms industry. It is opportunity for businesses to upgrade their communications systems and take advantage of the latest technologies.

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