Virtual Landline UK Guide: Everything Businesses Need to Know About Costs, Features, Setup and 999 Safety Rules

Nearly every UK provider selling this service leads with the same promise: a proper business number, on the phone in your pocket, today. What almost none of them put on the sales page is what the number costs once VAT is added, or what happens when someone dials 999 from it. This guide covers both, with prices checked on provider sites in August 2026. 

A virtual landline is a UK 01, 02 or 03 number that rings on a phone you already own. There is no physical line, no engineer visit and no line rental. Calls reach you by forwarding, through an app, or over a SIM. Entry prices start at £2.50 a month and rise to about £17 for a plan with recording and call menus. 

The Short Version 

Key Takeaways 

• Cheap plans forward calls to your mobile. Pricier ones give you an app, recording and a menu. 
• Second Ring starts at £2.50 a month. Ringline starts at £9.99. Both are real 2026 prices. 
• Ofcom lets you hold an area code for a town you have never lived in, but the rule has conditions. 
• Emergency calling is the weak spot. One provider states plainly that its app should not be used for 999. 
• The old copper network closes for most customers in January 2027, which is why these services keep appearing. 

How The Service Actually Works? 

Your number lives on a carrier’s network rather than on a wire into a building. When someone dials it, the call hits that network and is then sent to whatever device you nominated. Three delivery methods dominate the UK market, and they are not equivalent. 

1. Call forwarding. The call is passed straight to your existing mobile. No app, no data connection, nothing to install. 
2. VoIP app. The call arrives inside a calling app over your data connection, which also lets you dial out showing the business number. 
3. SIM-native. The number sits on a SIM or eSIM in your handset and behaves like a second line on the mobile network. 

Forwarding is the most reliable of the three because it leans on the mobile network you already pay for. App-based calling gives you the most features and the worst behaviour on weak Wi-Fi. SIM delivery sits in between and usually costs a little more.  Related reading: Driveway.

The practical benefit is speed of response. A number that follows you means fewer voicemails. It also means fewer callers who ring the next firm on the list, which is one reason leads slip away before they become buyers. 

What A Virtual Landline Costs In The UK In 2026? 

Headline prices are not comparable until you check the VAT line, and most sellers leave it out. Here is what four UK providers were advertising in August 2026. 

Compare that with the business-focused roundups, which start at £7 per user per month and climb past £12. Those figures are honest for a team with extensions and queues. They are the wrong benchmark for a sole trader who wants one number answered on one phone. 

Where the money goes: 

• Under £5. One number, inbound calls, voicemail. Outbound calling is metered or absent. 
• £5 to £10. An app, voicemail to email, a welcome greeting, a bundle of outbound minutes. 
• £10 to £17. Call recording, business hours routing and a simple menu that sends callers to the right person. 
• £12 upwards. London 0207 and 0208 codes, 0800 freephone, memorable numbers, which carry their own premiums. 

Not The Same Thing As Voip, And Not Call Diversion Either 

These three get used as synonyms in marketing copy, which muddles the decision. 

The diversion point deserves care because the cost model is different. BT charges for the full duration of each diverted call plus the standard set-up fee, so a busy week costs more than a quiet one. A flat monthly fee does not move. 

VoIP is the plumbing, not the product. Most cheap services here run on it, so asking whether one is “better” than the other misses what you are actually choosing between: a simple number, or a phone system. Features vary more than price does. Voicemail to email, a recorded greeting and missed-call alerts are close to universal now. They also pair well with the text message follow-up many businesses use after an unanswered call. 

Can You Pick Any Area Code You Like? 

In virtual landline process, Mostly yes, and the reason is a specific rule rather than a loophole. Ofcom’s National Telephone Numbering Plan says at condition B3.1.1 that a geographic number should go to a subscriber physically located in that area. There is an exception. It applies when the subscriber asked for that code and call charges stay the same as for other numbers using it. 

Read that second half again, because it is the whole basis of the market. You can run a Bristol business on a Manchester 0161 code if you ask for it and callers pay no extra. What you cannot do is use the code to make calls cost more than a normal call to that area. 

These are statutory obligations, not industry custom. Section 56 of the Communications Act 2003 makes Ofcom responsible for that plan, and the version Ofcom published most recently took effect on 22 April 2025. 

One caution on optics. A local code implies a local presence, and customers who work out there is no office in the area sometimes feel misled. An 03 number avoids that entirely and costs the caller the same as an 01 or 02 call. 

999 Calls: The Question Nobody Answers 

This is the gap in almost every guide on the subject, and it matters more than any feature list. An ordinary copper line carried its own power, so it worked when the electricity failed. Anything routed over the internet does not. Ofcom’s guidance on the migration to digital services, published in December 2023, requires providers to give at least one hour of power resilience during a power cut. That hour must be free where a customer needs the line to reach the emergency services. 

That protection attaches to your home or office phone service. It does not automatically follow a cheap add-on number. Second Ring says so in its own words: its app “is not suitable for calls to Emergency Services”. Most rivals simply stay quiet on the subject. So treat this as a business number, not a lifeline. Keep a mobile with credit and signal, and check the terms before you cancel anything you currently rely on. 

What The January 2027 Switch-Off Changes? 

The analogue network behind traditional phone service is being retired. Government guidance says the upgrade is expected to be complete for most customers by January 2027. People without broadband get interim arrangements until a digital option exists, or until 2030. 

That deadline is why these adverts are everywhere in virtual landline. It is also why the marketing is slightly misleading. Switching to a virtual number does not exempt you from the change, because the service was already digital. What it does is remove the wire you would otherwise be paying to replace. 

Setting up this year? The number is one of several small decisions that arrive at once, alongside the practical items new owners tend to overlook. Sort it early. The number ends up on vans, invoices and listings that are awkward to change later. 

Our Verdict: Which One Should You Buy? 

For a sole trader who wants a professional number and nothing else, Second Ring at £2.50 a month is the cheapest option here. The trade-off is metered outbound calling. 

We recommend Virtual Landline at £4.50 for most small firms. The price already includes VAT, and the London and 0800 options sit on the same account if you grow into them. Pick Ringline if call recording or a menu matters, and use its 14 day trial first. Choose ONSIM if you would rather the number lived on a SIM than in an app. 

Whichever you choose, do two things before you hand over a card. Check whether the quoted price includes VAT, and ask the provider in writing what happens on that number when someone dials 999. 

Frequently Asked Questions