VoIP vs. Landline

VoIP telephony is becoming more and more popular as businesses begin to modernise and look for more efficient, cost-effective alternatives to landlines. In this article, we explore the pros and cons of VoIP vs landline.

voip mobility


What is VoIP telephony?

VoIP stands for Voice over Internet Protocol – it’s a way of making phone calls using an internet connection rather than traditional phone lines.

It has been around since the nineties, first introduced to the enterprise market and in software such as Skype. It is now reportedly used by around a third of businesses, with more planning to make the switch once their current contract ends.


What are the advantages of VoIP?

Lower costs

  • VoIP is based in the cloud, so setup costs are minimal and there is no need for on-site hardware maintenance – staff can simply use existing devices, such as their laptop (unless a desk phone is what you prefer).
  • You only pay for what you need, and can scale the number of users up or down according to your requirements.
  • You’ll get both your voice and your data through your internet connection so your old phone network will no longer be required, streamlining the number of providers you use.


  • Because VoIP telephony works using your internet connection, it’s possible to have an unlimited number of lines and quickly onboard new users with minimal hassle.
  • VoIP technology can be integrated with various cloud-based phone systems and software applications, including Microsoft Teams.
  • You can answer calls from wherever you are, using either a desk phone, mobile or computer, which is especially handy in the new era of hybrid working.
  • Individuals can keep the same phone number no matter what location they move to.


What are the disadvantages of VoIP?

Call quality

There is the potential for call quality to be affected if the speed and stability of the user’s internet connection is not up to scratch, but it’s actually a bit of a myth that calls made over the internet aren’t as good as a traditional phone line – the technology has advanced considerably over the years so that calls are just as crystal clear as they would be over a PSTN line. Most businesses should have more than enough bandwidth to cover activities that consume a lot of data, such as video streaming or transferring large files, which means they are definitely equipped for voice calls.

Power cuts

Whilst traditional, corded landlines can still operate without electricity, VoIP cannot – however, this is something that’s very unlikely to happen and, if it does, it is possible to reroute calls to mobile phones.


advantages of landline


What are the advantages of landline phones?

They stand the test of time

If you like to stick to what you know, landlines are great – they’re a tried and tested solution that everyone’s familiar with.

They’re purpose-built

Landlines have one function, which they do well. Despite its limited features, call quality is great and downtime is rarely a problem.


What are the disadvantages of landline phones?

The landline has served businesses well for decades, but as technology continues to evolve, it is starting to get left behind.

Obsolete technology

Traditional landline telephony will no longer be available from 2025. BT plans to move completely to VoIP technology by this time, meaning that any investment made in landlines at this point is really a waste of money. Plus, as the cut-off date approaches, it is expected that development will slow down and it will become much harder to maintain the network.

It’s more expensive

The cost of hardware and calls is much higher for landlines than for VoIP systems. Plus, features such as call transferring and queuing usually come at an additional cost for landline phones, whereas they are included amongst many advanced features with VoIP systems.


The verdict: VoIP or landline?

It’s understandable to want to stick with a tried and tested solution that you’re familiar with. However, the reality is that landline technology isn’t going to be around for much longer.

Switching to VoIP will not only modernise your phone system ahead of the landline switch-off in 2025, but it will also bring greater flexibility, mobility and cost savings – it’s a win-win.


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