Understanding ‘All-IP’: Navigating the UK Telephone Network’s Digital Transformation

What is ‘All IP’?

As part of a global drive to enhance digital access for consumers and businesses through services like broadband, the UK is undergoing a significant shift.  

Over 14 million analogue lines are gradually being phased out, making way for digital phone lines. This shift marks a transition from the conventional Public Switched Telephone Network (PSTN) to the cutting-edge Ultrafast Full Fibre broadband service known as 'All IP'. This advanced technology leverages fiber optic cables to deliver a more robust, stable internet connection and significantly faster broadband speeds.

For most workplaces, transitioning to a digital service will be straightforward. Phone services will be transmitted over the internet, with all devices and services seamlessly connected via a router. Your service provider will offer guidance on the necessary steps to ensure a smooth transition


Analogue Phone Lines will not be sold to new customers from September 2023

The transition from analogue to digital services has already begun in various regions. Openreach, one of the UK's largest digital network providers and a prominent player in this transformation, is committed to completing the nationwide transition by the end of 2025. As a result, analogue phone lines will cease to be offered to new customers from September 2023, marking a key juncture in the digital transformation journey.

Stay informed about the current rollout in different regions: Openreach’s ‘All IP’ Programme Rollout


Will the digital transformation of the telephone network affect your Intruder alarm system?

When migrating to the new digital service, it's essential to be aware that your intruder alarm's functionality, particularly if monitored by an Alarm Receiving Centre, could potentially experience changes. This stems from the fact that certain alarm systems reliant on analogue telephone lines might not seamlessly integrate with the new digital service. Some may require minor adjustments, while others might necessitate reconnection to the updated phone service. 


What Actions Should You Take?

Whether driven by your telephone provider's recommendations or your proactive stance towards faster fibre-based broadband services, upgrading to a VoIP (Voice over Internet Protocol) subscription is a savvy move.

For those with security systems in place, it is advisable to contact your security alarm/maintenance provider prior to the line upgrade. This precautionary step will enable you to determine whether your alarm system requires adaptation or replacement to seamlessly integrate with the new IP network.

Adhering to a set of guiding principles can simplify your journey through the telephone network transformation:
  • If your alarm system provider suggests an upgrade, make sure you receive a detailed quote from them explaining the necessity of the change.
  • Not all alarm systems will be affected by these changes, so it may not be necessary to replace or upgrade your system.
  • Check any proposed changes of your alarm system align with the compatibility requirements of the new digital services.
  • Choose a professional alarm system provider approved by an independent UKAS accredited Certification Body such as NSI.

Recognising the importance of security to their clients, NSI approved installers are actively working to ensure the ongoing safety of workplaces is not compromised.

To learn more about how the digital transition might affect your workplace, visit the Openreach website:

For additional guidance, refer to the Ofcom website


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