Business Services

Choosing a business phone system

Traditional phone lines are being phased out across the UK, making VoIP the default choice for most new business phone systems — but 'VoIP' covers a wide range of setups with very different feature sets and reliability.

5 min readUpdated Jul 2026
Key points
  • Most UK providers are moving customers to VoIP as traditional lines are retired
  • Call quality depends heavily on your underlying internet connection
  • Compare features your team actually uses, not just the headline price
  • Always confirm number porting is possible before switching providers

How does VoIP differ from traditional phone lines?

VoIP runs calls over your internet connection rather than a dedicated phone line, which is cheaper and more flexible, but depends entirely on your broadband's reliability.

What affects VoIP call quality?

A business-grade internet connection with enough bandwidth matters more to VoIP call quality than the phone system itself — check your connection can handle it before switching.

Which business phone system features are worth comparing?

Call routing, voicemail-to-email, mobile app integration and call recording vary significantly between providers — list what your team actually uses before comparing quotes on price alone.

Can you keep your existing business number?

Confirm your existing business number can be ported to the new system before you commit — losing an established number can cost real business.

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