How does home phone over broadband work?
Who this page is for
Homes moving from copper phone lines to broadband-based voice.
Plain-English definitions
- VoIP
- Voice over Internet Protocol. Phone calls carried as data over your broadband connection.
What affects call quality
- Wi-Fi versus Ethernet for adapters.
- Heavy uploads saturating the link.
- Router configuration from your provider.
For regulation and consumer rights, start with Ofcom’s consumer pages.
Pulse measures download speed, latency, and jitter in your browser. It does not measure upload speed. For upload, use your provider’s tests or see our upload scope guide.
Compare broadband deals when your line is too small for what you do: BroadbandSwitch.uk, SearchSwitchSave.com, FibreSwitch.com.
UK rights and switching: start with Ofcom’s broadband guidance for personalised speed estimates, switching, and complaints.
Example scenario
Crackly calls track with heavy uploads. You wire the desk phone adapter and schedule uploads away from calls.
FAQ
Does Pulse test voice quality?
No. Pulse tests general network performance metrics.
What happens to digital voice in a power cut?
Many setups need power for routers and adapters. Read your provider’s resilience guidance.
Can I keep my phone number when switching?
Often, but processes vary. Follow your new provider’s porting steps and Ofcom’s consumer materials.
Why does voice break when gaming downloads run?
Saturated upload or bufferbloat can ruin small voice packets. Prioritise voice traffic or pause downloads.
Should VoIP adapters use Ethernet?
Yes when possible for stable timing and fewer drops.
Where can I read about emergency calling on digital voice?
Use your provider’s official calling and emergency access documentation.
Related guides
- Why is my video call quality poor on broadband?
- What are latency and jitter on broadband?
- Where should I put Wi-Fi for a home office?