VoIP vs Landline: The Best Choice for UK Small Businesses

With BT phasing out traditional analogue phone lines (the PSTN switch-off) by 2025, every UK business needs to understand the difference between VoIP and landlines.

What is the difference?

Landline (PSTN/ISDN): The traditional copper-wire phone system. It's reliable but increasingly expensive and being phased out across the UK.

VoIP (Voice over IP): A digital phone system that uses your internet connection to make and receive calls. It offers more features at a lower cost.

The 2025 Switch-Off

Important Deadline

By December 2025, the UK's traditional analogue phone network will be shut down. If your business still relies on a standard copper landline, you will need to switch to a digital (VoIP) solution before then.

Comparison Table

Feature Traditional Landline VoIP System
Cost High monthly rental + call costs Low monthly sub + free UK calls
Flexibility Fixed to one location Works anywhere with internet
Features Basic (Call waiting, etc.) Advanced (App, AI, CRM integration)
Reliability Works during power cuts Dependent on internet & power

Which should you choose?

For 99% of UK small businesses, VoIP is the clear winner due to its cost savings and the upcoming switch-off.

At Call2SMS, we bridge the gap. Whether you have a landline or VoIP, you can divert your unanswered calls to Call2SMS so every missed enquiry still gets an instant text-back, without the high-tech headache.

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