Most articles on this subject present a live choice between two options. That framing was accurate a decade ago and is drifting out of date, because in a growing number of markets the copper network underneath traditional service is being switched off deliberately.
So there are really two questions here. Which technology suits your business, and how long the second option will remain available to you.
The second question rarely appears in comparison articles, which is odd, because for a business planning a phone system over five or seven years it matters at least as much as any feature list.
What Each One Actually Is
Landline Phones
A traditional landline carries your voice as analog signals over copper wiring to a local exchange, which switches the call onward. The path is dedicated for the duration, which is why quality stays constant regardless of what else is happening on any network.
One characteristic matters more than people realize: the line itself carries a small electrical current from the exchange. A basic corded handset works during a power cut, because the phone draws power from the line rather than from your building.
Note the word basic. Cordless handsets, answering machines and anything with a plug lose this property entirely, so an office full of cordless phones has no more outage resilience than a VoIP deployment. The resilient device is the plain corded telephone many organizations threw out years ago.
VoIP Phones
Voice over Internet Protocol converts speech into data packets and sends them across an internet connection. No dedicated path, no reserved circuit; packets share the network with your email, your video calls and everything else.
That difference produces every advantage and every weakness discussed below. Sharing the network is why costs fell so far, why features multiplied, and why quality became something you engineer rather than something the network hands you. Our guide to VoIP and cloud telephony covers the mechanics in more depth.
Why This Comparison Is Becoming Historical
Copper Networks Are Being Retired
The clearest documented example sits in the UK, where the retirement has a fixed date attached. Openreach’s parent, BT Group, will retire the public switched telephone network by 31 January 2027, and Openreach has been withdrawing the wholesale products that run over it (Openreach).
Their stated reasoning is worth noting, because it applies wherever copper still runs: the analog network is obsolete, harder to maintain and significantly more expensive to operate, with skills and spare parts increasingly difficult to source.
Migration hasn’t been trivial. Openreach launched a service specifically to handle telecare and health alarm users, having successfully migrated more than a thousand customers using fixed-line telecare devices during a pilot before rolling it out nationally (Openreach).
I should be careful about how far that generalizes. The UK has a published date; other markets are at different stages and some have announced nothing. What the example demonstrates is direction and the kind of problems that surface, rather than a timetable you can apply to your own country.
What You Probably Already Have
Here’s the part that surprises people. A “landline” purchased today is frequently already a digital service delivered to an analog socket. Carriers have been migrating their own networks for years, and the handset on the desk cannot tell you which.
Which means the honest first step is not choosing between technologies but establishing what your lines actually are. Ask your provider directly whether each line is a genuine analog circuit or a digital service with an adapter, since the answer determines how much of the rest of this article applies to you.
The distinction matters practically rather than academically. A digital service presented through an adapter has already lost the power independence people assume they still have, because the adapter needs mains electricity even though the handset plugged into it looks identical to the one that worked during a power cut fifteen years ago. Businesses discover this during an outage, which is the worst available moment to learn it.
Head to Head
| Consideration | VoIP | Landline |
| Underlying path | Shared internet connection | Dedicated circuit |
| Quality behavior | Engineered, varies with network conditions | Consistent by design |
| Power cut | Fails unless backup exists | Basic corded handset keeps working |
| Internet outage | Fails at that location | Unaffected |
| Features | Extensive, included | Minimal, usually chargeable |
| Adding lines | Configuration | Physical installation |
| Remote working | Native | Requires call forwarding |
| Location | Anywhere with connectivity | Fixed to the premises |
| Long-term availability | Growing | Declining in several markets |
Notice that the landline column wins on exactly two rows, and both concern failure conditions rather than everyday operation. That’s a fair summary of where this stands.
Weighting those rows is where reasonable people differ. A dental practice booking appointments can tolerate a few hours without phones; a security company, a clinic taking urgent calls or a facility with regulatory obligations around emergency contact cannot. The question worth asking is not which technology is better in general but what an hour without inbound calling would actually cost you, and whether the answer justifies engineering around it or accepting it.
Where Landlines Still Genuinely Win
Vendor comparisons tend to skip this. The advantages are narrow and real.
Power and Network Independence
A line-powered analog handset works when the electricity fails and when your internet connection drops. For a site where somebody must be able to call out during a serious incident, that property has genuine value, and no amount of battery backup replicates it as simply.
The counterargument, which I find persuasive in most cases, is that a business unable to access email, systems or the internet has bigger problems than telephony. Protecting voice alone solves a narrow slice of a serious outage.
There’s a middle route worth knowing about, since this is rarely all or nothing. Retaining one analog line for emergency outbound use, while everything else moves, costs a fraction of maintaining a full traditional system and preserves the property that actually matters. Facilities managers tend to reach this conclusion faster than telephony vendors do.
Fixed Location for Emergency Services
Because a copper line terminates at a known address, emergency services receive that location automatically. VoIP can be registered with a location, and frequently is, though the registration must be maintained and updated when people move desks or work from home.
Anywhere staff might dial emergency services, confirm how location is handled rather than assuming. Home-based staff complicate this considerably, since a registered office address attached to a softphone tells responders exactly the wrong thing about where somebody is. Some providers prompt users to confirm their location on login; others do nothing. Ask which, and if the answer is nothing, decide what your own policy is rather than leaving it to whoever happens to dial.
Equipment That Was Never Designed for Anything Else
This is the strongest remaining case, and it deserves its own section further down. Lift emergency phones, fire alarm dialers, older payment terminals and similar devices expect specific analog behavior, and many predate any alternative.
What makes this category awkward is that the equipment usually belongs to somebody else’s budget and somebody else’s supplier. Telephony teams cannot resolve a lift phone; the lift maintenance contractor can, on their own timeline and at their own price. Coordinating across those boundaries is the actual work, and it is why migrations involving these devices take months rather than weeks.
Where VoIP Wins Decisively
Features Included Rather Than Sold
Call forwarding, voicemail to email, auto attendants, hunt groups, recording, queuing, reporting: these arrive as part of a subscription rather than as chargeable additions to a line rental. Anything resembling contact center capability sits so far beyond what a landline offers that the comparison stops being meaningful. A traditional line can ring, hold and transfer. It cannot tell you how long people waited, which agent handled what, or route a caller by language, and no amount of additional line rental changes that.
Location Independence
A VoIP extension travels with the person. Somebody working from home, from another emirate, or from a client site keeps the same number and the same capabilities without call diversion arrangements that customers can hear.
For organizations with several sites, internal calls stop being external calls, which changes both cost and how easily people reach each other. Extension dialing across a group that previously required knowing which office somebody sat in removes a small daily friction that nobody itemizes and everybody notices once it’s gone.
Adding and Removing Capacity
New starter next Tuesday? Configuration. Twenty seasonal staff for a promotional period? Configuration, then removal afterward. Physical installation, engineer visits and lead times disappear from the process entirely, and that operational difference tends to matter more day to day than the cost comparison people focus on.
The reverse direction deserves a mention too, since subscription terms vary considerably. Confirm whether licences can be reduced mid-term or only at renewal, because a platform that scales up instantly and down annually behaves rather differently from the flexibility implied in the sales conversation.
Our comparison of cloud and on-premise systems covers the related question of where the phone system itself should sit.
The Cost Picture
Why Published Comparisons Rarely Help
Cost claims in this category are usually produced by somebody selling one option, and the underlying models vary enough that quoted figures rarely transfer between markets. Rates for line rental, national and international calling differ substantially by country and by operator, so I’d rather explain the shape of the comparison than publish numbers that may not apply where you are.
What to Actually Compare
Build it yourself along these lines:
- Line rental or subscription, per line against per user, remembering that the units are not equivalent since one person may need several lines.
- Call charges, particularly international and mobile, where the gap tends to be widest.
- Feature costs currently paid separately, which frequently disappear into a VoIP subscription.
- Equipment, including whether existing handsets can be reused.
- Connectivity upgrades needed to carry voice reliably, which belong on the VoIP side of the ledger.
- Staff time, on both sides, counted honestly.
- Migration effort, one-off but real.
Point five gets omitted from most vendor comparisons, and point seven gets underestimated by everybody.
One further caution about the comparison. Line rental for a business is often bundled into a broader connectivity package, which makes isolating the true cost of the voice element harder than it appears on an invoice. Where that’s the case, ask your operator what the package would cost without the voice lines, since the difference is the real figure rather than whatever line item the bill displays.
The Device Inventory Nobody Runs
If you take one practical thing from this article, take this. The failures during a switch are almost never the desk phones; they’re the things quietly connected to phone lines that nobody remembers.
What Sits on Your Lines Without Anyone Thinking About It
- Lift emergency phones, which are frequently a legal requirement and connected to a line installed years ago
- Fire and intruder alarm dialers, reporting to a monitoring center over the same infrastructure
- Card payment terminals on older analog connections
- Fax machines, still required in certain legal, medical and government processes
- Gate and door intercoms
- Building management and telecare devices
- Modem connections for older equipment nobody has audited in a decade
Openreach’s own migration programme required a dedicated service for telecare devices specifically, which tells you how much attention this category needs. Where a device dials out over an analog line, somebody must establish what replaces it before the line changes, and for lifts and alarms that frequently involves the equipment supplier rather than the telephony provider.
How to Run the Audit
TabaTalk recommends a physical walk of every site with the line list in hand, checking what is plugged into each socket rather than working from records, which are almost always incomplete. Photograph anything unfamiliar. For each device found, establish who supports it, whether a digital equivalent exists, and what the lead time is, since alarm and lift equipment frequently needs a site visit and parts.
Doing this before you commit to a switch date is considerably cheaper than discovering a lift phone stopped working after the cutover.
Order matters within the audit as well. Deal with anything carrying a safety or legal obligation first, since those have the longest lead times and the least flexibility, then work down to conveniences like the fax nobody uses. Teams that start with the easy items feel productive for a fortnight and then discover the difficult ones with no time left, which is how switch dates slip.
One more habit worth adopting: record what each line costs alongside what it does. Audits routinely turn up lines paying rental for equipment removed years ago, and in several cases the savings from cancelling those alone have covered a meaningful share of a migration.
The UAE Position
Businesses here face a consideration that changes the framing entirely, and it is not one that appears in comparison articles written for other markets.
TDRA distinguishes between the technology, meaning transmission and routing of voice over IP networks through packet switching, and the service, meaning voice or video calling offered over the internet, with services governed by its regulatory framework and specifically the VoIP Regulatory Policy (TDRA). Licensees may provide such services in several forms, and TDRA maintains a list of approved applications.
So the practical question locally is less “landline or VoIP?” than “which service from a licensed operator, delivered how?” Both traditional lines and business voice services run through licensed operators, which makes this partly a product selection within an existing relationship rather than a choice between independent worlds.
I have not found a published copper retirement timetable for this market comparable to the UK’s, and I would rather say so than imply one exists. What can reasonably be observed is that the economics driving retirement elsewhere, ageing infrastructure, scarce parts and the cost of running two parallel networks, are not unique to any single country. Planning as though traditional lines will remain indefinitely available seems optimistic; asserting a date would be inventing one.
What That Means for Shortlisting
International platforms that appear in comparison articles built their offers around markets where a single vendor holds carriage broadly. Whether any given provider has a lawful route to carry voice here is a separate question from product quality, and worth establishing early. Arrangements that keep your existing licensed operator while changing the platform above it tend to suit this market.
Frequently Asked Questions
Can I keep my existing number when moving to VoIP?
Usually yes, through porting, though the process and timeline depend on your current operator and the number type. Certain numbers, particularly older or non-standard ranges, port less readily. Start the porting conversation early, since it frequently becomes the critical path for the whole project while platform configuration finishes far sooner. An alternative in some markets is retaining your existing carrier and changing only the platform above it, which avoids porting entirely.
What internet speed does a business need for VoIP?
Concurrency matters more than headline speed. Each simultaneous call consumes a modest amount of bandwidth, so a connection adequate for general office use typically handles a small team, while larger operations need calculating against peak concurrent calls plus headroom. Stability matters more than raw capacity: a fast connection with variable delay produces worse audio than a slower, steadier one. Test under realistic load rather than trusting the advertised figure.
Do VoIP phones work during a power cut?
Not without preparation, since both the handset and the network equipment require electricity. Backup power for the router, switch and any powered handsets extends operation, and calls can be diverted automatically to mobile numbers when the site becomes unreachable. Configure that diversion in advance rather than assuming it happens. Businesses where outbound calling during an outage is genuinely critical sometimes retain a single analog line for exactly that purpose.
Is VoIP call quality worse than a landline?
It varies, whereas landline quality does not, which is the honest distinction. Well-provisioned VoIP on a stable connection frequently sounds better than a traditional line, since wider audio codecs carry more of the voice than analog telephony ever did. Poorly provisioned VoIP sounds noticeably worse. Quality becomes something you engineer through bandwidth, traffic prioritization and wired connections rather than something the network guarantees on your behalf.
Are fax machines a problem when switching?
Frequently, yes. Fax was designed for analog circuits and behaves unpredictably over packet networks, so transmissions fail intermittently in ways that are difficult to diagnose. Where fax remains genuinely required, options include a dedicated analog line retained for that purpose, a fax-to-email service, or an adapter configured specifically for it. Establish early whether the requirement is genuine or merely habitual, since many organizations discover nobody has sent one in years.
Should a small business still consider a landline in 2026?
Possibly, for specific purposes rather than as a main system. A single analog line supporting an alarm, a lift or emergency outbound calling can make sense alongside a modern platform handling everything else. As the primary business phone system, the case has narrowed considerably, and in markets with announced copper retirement it carries a timeline risk that will eventually force the decision anyway.
Working out what to do with your lines?
The most useful first step costs nothing: ask your provider whether each of your lines is genuinely analog or already a digital service, then walk the building to see what’s plugged into them.
TabaTalk provides cloud contact center software built for Gulf operations, supporting bring-your-own-carrier arrangements so you keep your existing licensed operator and your numbers, with routing, queuing and reporting your team can configure directly. Contact our sales team to talk through your current lines, or see how the platform works alongside the operator you already have.
