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The Big Switch Off 2025

  19 Mar 2021

It may be news to you that traditional analogue telephone networks have been scheduled to be switched off in 2025.  Don’t panic, Diamond are here to let you know what it means and how it affects you.

What’s going on?

BT Openreach has announced it will be switching off it’s PSTN and ISDN networks in 2025 in favour of IP voice services, to make way for new technology, with a gradual phase-out of the older systems. At this point, BT Openreach will cease taking ISDN orders, and all businesses will be forced to find other IP-based options for their business telephony systems.

What is ISDN & PSTN?

The Public Switched Telephone Network (PSTN) is the familiar landline telephone system originally set up for analogue voice communication, and became the most reliable method of making voice calls and the main carrier for internet activity across the world.

Then along came the Integrated Services Digital Network (ISDN), allowing the digital transmission of voice, video and other services simultaneously, using the traditional PSTN network.

Why are they being phased out?

The quick answer is that the systems are now deemed out of date, along with the associated maintenance and running costs. Despite having been updated since their inception, these lines are still essentially the same in setup and design as the original phone lines of the 1800s. As with all other fields of technology advancing at light speed around us, it makes sense that our telecoms systems are also updated.

A 2017 an Ofcom report, stated that there were over two million businesses still with an ISDN connection in the UK, all of which will be affected by the planned switch off in the coming years. A follow-up survey revealed that a quarter of the UK’s businesses are still unaware that the switch off is even taking place.

These businesses need to be made aware of the upcoming changes so they can begin the necessary switch to IP-based services such as SIP and VoIP to avoid finding themselves without a phone system.

What is SIP & VoIP?

Session Initiation Protocol (SIP) is a protocol used in Voice over Internet Protocol (VoIP), and allows users to make voice and video calls on a global scale using computer and mobile devices with an internet connection.

The biggest and most noticeable difference between traditional ISDN and SIP networks for businesses is the flexibility of not being tied down to a fixed line at a fixed location, allowing the ability to mobilise your business communications. These VoIP communication systems are also often referred to as cloud-based telephony systems.

What happens after the switch-off

Businesses switching to a cloud-based system can save on costs as well as providing a range of extra features. However, you will need to look at whether your existing internet connection is up to the job.

The benefits to your business of implementing the right data connection go beyond cost efficiencies and speedy web browsing. This increased speed, reliability and reduced latency enables you to take full advantage of bandwidth-intensive and real time applications in the cloud. You need Ethernet solutions that provide dedicated internet access with guaranteed speeds and service level agreements that offer rapid response times.

What to look for

Look carefully at providers and the levels of service on offer. At Diamond we can cater for all your business needs, ensure you have a quality data connection for uninterrupted calls, as well as a quality of service.

We are able to take care of the porting process for you and are able to manage the entire process of switching your business from ISDN to IP, so that you don’t experience any loss in service during the changeover. Although the BT Openreach ISDN end of life is in 2025, if you currently have a traditional ISDN/PSTN based system, now is a good time to look into the alternative.

Get in touch for more information!



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