The Big Picture
Traditional landlines route calls over dedicated copper wiring; VoIP routes them over your internet connection. That single difference explains nearly everything: VoIP is dramatically cheaper and more flexible because it rides infrastructure you already pay for — and its weaknesses are exactly your internet connection's weaknesses. Meanwhile carriers are actively retiring copper networks, so the landline column of this table is shrinking toward legacy status regardless of preference.
Side by Side
| Factor | VoIP | Landline |
|---|---|---|
| Typical cost | Business: roughly $10–$40/user/mo. Home: can be nearly free after hardware (Ooma Telo) | Commonly $30–$60+/line/mo for business service, before long-distance and feature fees |
| Features | Auto-attendant, voicemail-to-email, apps, texting, video — included | Calling, voicemail, caller ID; anything more costs extra or isn't offered |
| Call quality | HD audio on a good connection; degrades with poor internet | Consistent, though bandwidth-limited "phone quality" audio |
| Power/internet outage | Down unless you have battery/cellular backup — but calls fail over to mobile apps automatically | Classic copper lines often stay up in power outages (fiber-based "landlines" don't) |
| 911 | E911 with a registered address — you must keep it updated, especially for mobile/nomadic use | Location automatically tied to the physical line |
| Mobility | Your number works anywhere — office, home, phone app | The number lives where the wire ends |
| Scaling | Add a user in the admin portal in minutes | New lines mean truck rolls and installation windows |
| Future | The industry standard, actively developed | Being retired; carriers are decommissioning copper |
Where VoIP Wins (Most of the Time)
- Cost: for a multi-line business, the savings are usually dramatic once you count per-line charges, long distance, and feature fees on the old bill.
- Features: a $20 VoIP seat includes capabilities that cost hundreds monthly in the PBX-hardware era, if they existed at all.
- Flexibility: remote work, multiple offices, seasonal scaling, and vanity numbers are all trivially easy on VoIP.
Where Landline Still Wins
Honesty requires this section:
- No reliable internet, no VoIP. If your location has genuinely poor broadband and no good cellular fallback, copper (where still offered) may simply work better.
- Power-outage resilience: a true copper line powered from the exchange can keep working when your building is dark. VoIP needs UPS batteries and/or cellular failover planning to match that.
- Special equipment: some fire-alarm panels, elevators, fax machines, and medical-alert systems were built for analog lines. Modern replacements and cellular communicators exist, but check before cutting the cord.
Practical mitigation: most businesses address the outage concern with the mobile app (calls ring your cell when the office is offline) plus a UPS on the router. That combination covers the realistic failure cases for a fraction of what redundant copper lines cost.
The Verdict
Choose VoIP unless your internet genuinely can't support it or you depend on analog-only equipment. The cost and feature gap is too large, and the copper network's days are numbered anyway. Start with our provider-choosing framework, then pick from the comparison — and for home use specifically, go straight to Ooma.