VoIP vs Traditional Landline for Business (2026)

If you are running a business in Canada and still paying for a traditional landline, you have probably noticed that the monthly bill has not gotten any smaller — while the feature set has stayed largely the same for two decades. VoIP (Voice over Internet Protocol) has matured to the point where it is not just cheaper than a traditional landline: in most respects, it is simply better. But the right choice still depends on your situation. Here is a clear-eyed comparison so you can decide.

What Is a Traditional Landline?

A traditional landline — sometimes called a PSTN (Public Switched Telephone Network) line — carries your voice as an analogue or digital signal over physical copper wiring. In Canada, these lines are maintained by carriers like Telus and (in some regions) legacy Shaw infrastructure now absorbed into Rogers. They are the system that has underpinned telephone communication since the 19th century.

For business use, you typically rent one or more lines from a carrier, pay a monthly subscription that covers a set number of local and long-distance minutes, and purchase or lease on-premise hardware — a PBX box, desk phones, and associated cabling — to manage extensions internally. The infrastructure is mature and well-understood, which is part of why so many businesses have been slow to leave it.

The downsides are also well-understood: high monthly fees, rigid contracts, expensive adds-moves-and-changes, and hardware that depreciates and eventually fails. When something breaks, you wait for a technician. When you outgrow the system, you buy new equipment.

What Is Business VoIP?

VoIP converts your voice into digital packets and sends them over your internet connection — the same network your email and video calls already use. A hosted PBX takes this further: the switching hardware lives in a provider's data centre rather than in your office, and you manage everything through a web portal or a quick call to your provider.

From the caller's perspective, a VoIP call is indistinguishable from a landline call. Your number looks the same on call display. Inbound and outbound calls work the same way. What changes is what happens behind the scenes — and what you pay for it. For a full overview of what hosted VoIP includes, see our business phone plans.

Side-by-Side Comparison

Cost

This is where the difference is most stark. A two-line Telus business plan with basic features commonly runs $80–$150 per month, plus installation, plus hardware. A comparable VoIP plan with ACVoIP — including hosted PBX features like auto attendant, call queues, and voicemail to email — is available for a fraction of that cost per line, with no hardware fees for businesses that already have SIP-compatible IP phones or use softphones on their computers.

Over a two-year period, the savings for a small Calgary business typically run into thousands of dollars. And unlike a legacy carrier, there are no early-termination fees on month-to-month VoIP plans.

Features

On a traditional landline, advanced features like auto attendant, call recording, or voicemail-to-email require additional hardware or add-on packages at extra cost. On a hosted PBX, these features are built in from day one. Ring groups, call queues, find-me follow-me forwarding, internet fax, and softphone apps are standard — not premium upsells.

Reliability

Traditional landlines are not immune to outages. They are vulnerable to line damage, switching equipment failures, and weather events. VoIP relies on your internet connection, which means a local internet outage can affect service — but modern hosted VoIP mitigates this: calls can automatically failover to a mobile number or another location when your primary connection goes down. With a quality business internet connection, uptime is comparable to or better than a traditional landline.

Portability

Landlines are tied to a physical location. If you move offices, you may need to change your number or pay porting fees. With VoIP, your number travels with you. A remote employee can use the exact same extension — with the same business number — from a different city or from home, using nothing more than a laptop and a headset.

E911 (Emergency Services)

Traditional landlines automatically transmit your address to emergency services when you dial 911. VoIP providers in Canada are required to offer Enhanced 911 (E911), which transmits your registered address the same way — but the key difference is that your registered address is tied to your account, not your physical connection. If you move offices or a staff member works from home, you need to keep that address updated. Learn how ACVoIP handles E911 →

When a Landline Still Makes Sense

There are situations where sticking with a traditional landline is the more prudent choice. If your internet connection is unreliable or your location has limited broadband options, VoIP quality may suffer. Certain regulated industries or legacy equipment (some alarm systems, older fax machines, point-of-sale terminals) may require a copper POTS line for compliance or compatibility reasons. And if you have recently signed a long-term carrier contract, it may be worth waiting until it expires before switching.

In these cases, the right move is not necessarily to avoid VoIP altogether but to assess your connectivity first. ACVoIP can advise on whether your current internet service will support the number of concurrent calls your business makes.

When VoIP Is the Better Choice

For the majority of Calgary small and mid-sized businesses, VoIP is the better choice — and has been for several years. If you have a reliable business internet connection (which most Calgary businesses do), you will notice no functional difference in call quality while paying significantly less per month. You will gain features that landlines cannot match without expensive hardware, and you will have the flexibility to scale up or down without penalty.

VoIP is particularly compelling for businesses with remote employees, multiple locations, or seasonal staffing fluctuations — situations where the rigid, location-bound nature of a traditional landline becomes a real operational problem.

Making the Switch in Calgary

Switching from a traditional landline to VoIP in Calgary is straightforward, and you do not need to give up your existing number. Number porting transfers your current number to the new platform — typically within 5–10 business days — while your old service remains active throughout the transition. Read our guide on how number porting works for a full step-by-step walkthrough.

ACVoIP has been helping Calgary businesses make this transition since 2015. Our team handles the porting paperwork, helps you assess your existing hardware, and stays available locally after your service goes live. There are no national call-centre queues and no three-year contracts required.

For a closer look at what business VoIP costs in Canada, see our 2026 pricing guide.