What is the difference between VoIP and a mobile phone call?

August 14, 2023

Short for Voice over Internet Protocol, VoIP and mobile phones are both ways that you can make and receive phone calls, without using a landline. However, the technology behind them and the way they work varies quite a lot.

VoIP in particular comes with huge benefits for small businesses (not to mention the potential cost savings). Here we look at some of the differences between the two.

How is the technology different between VoIP and mobile phone calling?

VoIP transmits sound in digital ‘packets’ using the internet, using IP (Internet Protocol) networks. Various devices can be used to make VoIP calls, so you don’t always have to be tied to one location or use a handset if you don’t want to. Compatible devices include tablets and smartphones, which makes VoIP ideal for remote or hybrid working.

On the other hand, mobile phones transmit voice signals using cellular networks. These networks include a system of cell towers that relay signals between mobile phones. When you call someone using your mobile, your voice is converted into radio waves before being transmitted wirelessly to the recipient's mobile device via these cell towers.

What are the differences in infrastructure?

All you need to make a VoIP call is a stable (preferably fibre) internet connection. This makes it really versatile and you don’t need to worry about poor signal in the same way you do with mobiles.

When you use your mobile phone to manage your business calls, you’re at the mercy of your call plan, which usually includes texts, minutes and data usage which can be limiting. International calling can be super pricey too.

VoIP is typically much cheaper to use for calls, as VoIP providers tend to offer set price, low cost calling plans (our unlimited calls packages start from just £13.95 per month).

How reliable is VoIP compared to mobile phone calls?

The call quality of a VoIP call is generally much higher than that of a mobile phone call with less interference. Again, mobile phone call quality is most affected by signal strength (we’ve all persevered with that annoying phone call that keeps cutting out!). 

As VoIP calls are transmitted over the internet, if the connection is stable then VoIP calls don’t cut out.

VoIP means fewer missed calls

When you first start your small business, you may well choose to simply deal with any customer or client calls using your mobile. This is especially the case if it’s just yourself working and you don’t have any staff.

However, as your business grows, you’ll likely need to take on extra members of your team - and therefore need extra phone lines as your mobile on its own isn’t enough. But due to the landline switch-off coming in 2025, no new landlines are actually being sold from September 2023. So unless you move to VoIP you’re going to have a problem - unless you keep buying mobile phone handsets every time you get a new team member. Expensive!

Additionally, you’ll probably find your mobile rings day and night with new customers and striking any decent work/life balance is getting harder. But you don’t want to miss those calls, as calls mean potential new income!

With a VoIP phone system, you can divert calls to an answerphone or to other team members during certain times of the day or week (or if you go on holiday). Fewer missed calls means more business opportunities, and a more professional look.

Fancy giving VoIP phone calling a go?

Sign up for our FREE 7-day free trial. There’s no obligation to continue after the 7 days if you don’t want to, but it’s the ideal way to try out all the business-friendly features on offer.

The fact is that by getting VoIP you’ll not only be able to manage your business calls better, you’ll also give yourself a more professional appearance - whilst potentially saving a lot of money too. Plus of course, you’ll protect yourself from the landline switch-off.

Still not convinced? 

Check out our latest success stories or feel free to give our friendly expert team a call on 0203 617 9950.


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