While most businesses are already familiar with the concept of the ISDN/PSTN switch-off announced by BT in 2015, many still haven’t prepared for how they’re going to transition into a new IP-driven world. According to recent surveys, 24% of UK businesses haven’t planned for their next step.
One of the main reasons companies are underprepared, is they aren’t fully aware of what this switch-off is going to mean to their available services. The removal of PSTN and ISDN technology from the UK landscape doesn’t just impact PBX systems. It can also influence a company’s broadband services and various other technologies.
Here’s your guide to which services are going to be affected by the ISDN/PSTN switch-off, and how to define whether your business will be impacted.
The IDSN/PTSN switch-off is set to be completed by the end of 2025, meaning following this date, all services which use the copper phone network will be affected. This includes all traditional “landline” telephony used by companies around the UK today. If you have an ISDN-based PBX in your office, this will become obsolete, unless you switch to a new solution.
However, it’s not just the phones in your company which might be influenced by the switch off. PSTN is also responsible for supporting other services which provide access to FTTC and ADSL broadband. These services will also stop at the end of 2025, which means you’ll need to upgrade your internet connection and the services linked to it.
In some cases, companies may also need to change their CCTV cameras, payment terminals, security alarms, and a range of other tools as these are often connected to POTS lines
To determine whether the ISDN/PTSN switch-off will impact you, the first thing you’ll need to do is define what kind of communication system you’re using. The term “POTS” or Plain Old Telephone Service is frequently used to describe any company using the PTSN ecosystem.
Essentially, the POTS is an analogue voice transmission system installed with copper wires, which provide power and connectivity to a central switching system.
Here’s how to determine whether you have a POTS line:
Phones connected to specific store locations, lift phones, and phone/fax systems are most likely to belong to the POTS environment. Emergency phones and alarm systems are also more commonly PSTN-connected than VoIP-based.
Once you’ve determined what kind of phone line you have, you’ll be able to decide whether you’re going to be affected by the ISDN/PTSN switch-off. If you have a POTS solution in place, you’ll need to make sure you switch over to an IP or Internet Protocol phone solution before 2025.
For most companies, it will be important to start assessing potential switch-over options as quickly as possible, as this will give you more time to determine whether you want to take a VoIP or SIP trunking route.
VoIP is usually the strategy you’ll use to replace your entire phone system, while SIP trunking allows you to leverage your existing technology and phone numbers while moving to IP technology. Make sure you’re ready for the transition by examining all of the tools and services you have connected to your POTS technology, Resonate can help you do this and also help you to make your switchover as simple as possible.