VoIP vs landline for business: what is the real difference?
VoIP calls travel over the internet, and landlines use copper lines. Compare cost, setup, reliability and features before you choose for your business.
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People often ask whether they should keep a landline or move to VoIP. The honest answer is that the technology matters less than what your team needs: flexibility, cost and call quality. Here is a fair comparison.
How each one works
A landline carries your voice over a physical line from your building to the phone company. VoIP, short for Voice over Internet Protocol, turns your voice into data and sends it over your internet connection. To the person you call, both can look like ordinary phone numbers.
Side by side
| Landline | VoIP | |
|---|---|---|
| Setup | Installation visit, fixed to one place | Software, ready the same day |
| Cost | Line rental plus call charges | Usually a monthly price per user |
| Adding people | Extra lines and handsets | Add a user |
| Working from home | Needs forwarding or extra setup | Works from any computer with internet |
| If the internet fails | Still works | Needs a backup connection |
| Extras like call logs | Limited | Often included |
Where landlines still make sense
A landline can be useful where internet is unreliable, or for equipment such as alarms that expect a traditional line. If that is you, consider keeping one line and using VoIP for the rest.
How to get good VoIP quality
- Use a wired connection or a strong Wi-Fi signal.
- Use a headset with a microphone, not the laptop speaker.
- Keep a mobile hotspot as a backup.
- Check the system requirements of your provider. Ours are on the system requirements page.
What it costs
VoIP is normally priced per user per month, with no hardware to buy. At Dialsyx, the USA and Canada plan is $23 for one user, $40 for two users, and $15 per user from three users. See all prices.
For most teams who make customer calls, VoIP gives more for less. The key is a stable connection and a provider that is clear about what you get.
A short test before you switch
- Run a speed test at the place where your team will call.
- Make a few test calls with a headset to a mobile and to a landline.
- Ask a friend to listen for echo or delay.
- Check that your router is not overloaded by other devices at busy times.
Planning for outages
No connection is perfect. The best protection is a second route: a mobile hotspot, a second internet provider or a plan to forward calls to a mobile. Test the backup once so you know it works. Most teams find that a small amount of preparation removes the main worry about moving to VoIP.
Frequently asked questions
Is VoIP as clear as a landline?
With a good connection and a headset, yes. Poor internet is the usual cause of bad quality.
Can customers tell it is VoIP?
Usually not. They see a normal number when you call.
Can I use both?
Yes. Some businesses keep one landline and run everything else on VoIP.
We build business calling for teams in the USA, Canada, the UK, Australia and Japan, with a browser phone and a built-in CRM. About Dialsyx
