Are you prepared for a digital future?

Updated: Jun 29


What is the PSTN/ISDN Switch off and why is it happening?

BT announced intentions in shutting down the PSTN (Public Switched Telephone Network) and ISDN (Integrated Services Digital Network). This shutdown is to be completed by 2025 and will impact a wide range of communications products, specifically those that use Wholesale Line Rental (WLR) services and onsite Phone systems. By September 2023, all products within the WLR services will be removed from sale in preparation for the move to next generation digital services as technology and customer behaviours change companies across the globe are moving from analogue to digital. ​ In a short and sweet version, the switch is fairly overdue! With PBX technology becoming obsolete and surpassed quality and convenience for businesses in comparison to its new digital cloud-based counterparts which are much more efficient.


How will this affect your business?

The switch off could affect your organisation in more ways than you think, anything from DSL Broadband, Voice lines, Lift lines to Building alarm systems. All services will then become fully fibre based and digital. It is crucial that you plan in advance to migrate your connections over to IP technology. Most organisations have already made the switch from ISDN to IP technology, with VoIP and SIP being the best and leading alternatives. ​ Both systems are more progressive modern upgrades and simply rely on an internet connection to work. They are also less expensive, require fewer physical lines and are more scalable and flexible than ISDN.

How can you prepare for the switch off?


​To start with, you should familiarise yourself with the following key dates:



The complete shutdown will happen in 2025 but services are being gradually withdrawn as we speak, so it will be beneficial to switch as soon as possible! You’ll want to do your research on the digital alternatives and ensure that the choice you make works best for your business, carrying out an audit of your existing telephony system will be highly beneficial in making this decision. ​ Our expert team at Total IT are here on hand to help you make an informative decision tailored around your needs. We can also assist you in seamlessly making the switch by providing free of charge site surveys and helping to provide a truly unified communications platform for your property or business.


Contact our team via: 01908 870360

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