With traditional public phone lines being phased out by 2025, businesses now need to start thinking about the logistics of their telephone systems.

What is PSTN and ISDN?

PSTN refers to Public Switched Telephone Network which was initially made of copper wires. ISDN stands for Integrated Services Digital Network and was introduced to replace PSTN.

When is the PSTN switch off?

From 2023, BT will stop selling/ upgrading ISDN/ PSTN lines. BT will switch off all PSTN/ landlines by the end of December 2025.

What services will be affected?

A range of services will affect two million businesses in the UK, including;

  • Phone lines and their numbers
  • Emergency phones
  • ADSL and FTTC broadband internet services
  • Door–entry systems
  • Burglar alarms
  • Panic alarms
  • Fire alarms
  • Lift lines
  • Fax machines
  • EPOS terminals

What solution should businesses switch to?

With digital technology revolutionising the way we work; businesses should upgrade to an internet based or VoIP phone system.

Voice Over Internet Protocol (VoIP), also known as internet telephony allows users to make and receive voice calls over the Internet. It is fast becoming the standard means of communication. With many key benefits, VOIP offers businesses flexible, cost effective, scalable, and reliable communication. It also supports businesses with working from home.

Businesses should also ensure that they have a reliable business-grade broadband solution in place such as a leased line.

How long does it take to switch over?

It depends on the existing infrastructure and how many telephone lines but typically from seven days to switch over a telephone line.

Don’t wait until 2025 to switch

To ensure your line is switched over in time, we would advise our clients to not wait until 2025 to switch.

Our Telecommunication and Connectivity experts can help you choose the right solution for your business. Contact our friendly team for a free, no obligation quote.