Free VoIP speed test · updated October 2026
VoIP phone service, explained simply.
Find the right VoIP phone service for your home or business, test your internet for call quality and see what you could save. No jargon, no hype.
Everything you need to choose a phone service
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Start with the essentials
Plain-English answers to the questions people ask most. See all guides →
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From your voice to their ear in four steps
Read the full explainer: what is VoIP and how does it work.
Your voice becomes data
A VoIP phone or app turns your voice into small digital packets, about 50 every second.
Packets travel over the internet
They use the same connection as your email and video calls. Each call needs only around 100 kbps each way.
Your provider routes the call
Your VoIP provider connects the call to any phone number, mobile or landline, anywhere in the world.
The other side hears you
Packets turn back into sound in a fraction of a second. Low latency and jitter keep it clear.
Frequently asked questions
What is VoIP in simple words?
VoIP (Voice over Internet Protocol) sends your phone calls over the internet instead of copper phone lines. You can use a desk phone, a cordless phone with an adapter, an app on your mobile or your computer. Read what VoIP is and how it works.
Is my internet fast enough for VoIP?
Most homes and offices are. Each call needs only about 100 kbps each way, but steady latency and low jitter matter more than raw speed. Run our free VoIP speed test to see how many calls your connection can carry.
Is VoIP cheaper than a landline?
Usually, yes. VoIP plans often bundle unlimited calling in your country plus features that landlines charge extra for. Use our VoIP cost calculator with your own numbers, and check current pricing with providers.
Which VoIP service is best for a small business?
It depends on your team size, the apps you use and whether you need video meetings or a contact centre. Our guide to the best VoIP for small business compares the well-known providers feature by feature.
Can I keep my phone number if I switch to VoIP?
In most cases, yes. Moving a number between providers is called porting. Your new provider requests it for you; keep your old service active until the port completes.