What is the PSTN switch-off and how will it affect my business phone system?

The PSTN (Public Switched Telephone Network) is the traditional copper-wire telephone network that has served the UK for over a century. BT Openreach is switching off the PSTN by January 2027, meaning all traditional analogue and ISDN phone lines will stop working.

What this means for your business:

• Traditional landlines and ISDN lines will no longer function after the switch-off date
• Any equipment connected to analogue lines (fax machines, alarm systems, door entry systems, PDQ machines) will need to be migrated
• Openreach has already stopped selling new ISDN lines and is actively migrating exchanges

What you need to do:

• Audit your current setup – identify all services that rely on traditional phone lines
• Switch to VoIP – a hosted VoIP phone system runs over your broadband and is the direct replacement for PSTN and ISDN services
• Upgrade your broadband – ensure you have a reliable internet connection capable of handling voice traffic
• Port your numbers – your existing business phone numbers can be transferred to your new VoIP system
• Plan early – do not wait until the last minute as demand for migration services will increase as the deadline approaches

Connection Technologies is helping hundreds of UK businesses prepare for the PSTN switch-off. Get a free migration assessment to ensure your business is ready.