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The VoIP Phone System For UK Businesses

Crystal-Clear VoIP Phone Systems

Affordable business VoIP phone built for reliability. Backed by a 5-star rated UK based customer service team. No jargon. No confusing contracts. No compromise.

Welcome to customer service that answers the phone in under 10 seconds, clear VoIP without the distorted audio or dropped calls, tariffs that are clear with no hidden costs… welcome to a VoIP Phone System built for UK business. Don’t just take our word for it, see what thousands of customers are already saying about us.

4.9/5 (Based on over 2,500 reviews)

Business VoIP Phone System With Desk Handset
Man using his Virtual and VoIP phone system

Why Your Business Needs A Better VoIP Phone System

Business VoIP is the present and future of telecoms, with the ISDN switch off we all had to make the switch. But it’s time to re-think your business VoIP systems, VoIP has evolved into a modern, internet-based system that doesn’t just replace landlines, it destroys them.

Tamar VoIP unlocks:

Business VoIP Features You Will Actually Use

We listen to our customers and continue to build features businesses actually ask for. No hidden costs, we’re including all this for FREE.

Branded VoicemailHoliday ModeHunt GroupsWhatsapp Business IntegrationBlacklist… the list goes on. PLUS we’re always listening to customer requests and developing new features your business can use.

There are hundreds of feature combinations that can be fine-tunes to suit your exact business needs and our team are happy to help understand our business and get you set up.

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Finally, A Business VoIP Phone That’s Rated 5-Stars

We’ve been a leading UK telecom provider for over two decades, earning thousands of 5-star reviews by doing one thing exceptionally well: putting our customers first. We know you want UK-based support you can actually call – without being stuck on hold. You want a reliable network that just works and you expect transparent pricing, without hidden fees creeping in later.

That’s exactly what we deliver. Reliable Business VoIP, honest pricing, and genuinely helpful customer support.

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Woman working on laptop using her cloud voip phone

Choosing The Right Business VoIP Provider

When choosing your VoIP Phone provider, be sure to check for hidden costs and ask what features are included. Something often overlooked is choosing a provider with the right support and service you need too. The easiest way to find out of they’re as good as they say they are… call their support line and see how long they take to answer. If you’re feeling overwhelmed by VoIP don’t worry,you’re not alone, we made a guide to VoIP to help.

Whatever plan you need our pricing is transparent with absolutely no hidden costs and simple, 1-month rolling contracts. Every plan includes hundreds of feature combinations we can help you tailor to your exact business needs with flexible scaling as your business grows. We even have a range of VoIP Handsets that our team fully configure for you before we send them.

We have a full in-house technical team to provide support so your VoIP System is set up properly and crystal clear. Plus our whole team is based in the UK and we answer 98% of calls in under 10 seconds. This isnt just marketing lingo, you can pick up the phone and try for yourself.

Transparent VoIP Plans & Pricing

Choose from one of our amazing tariffs, there's something for everyone and you can change later as your business grows. All our plans come with a simple 1-month rolling contract. No Hidden Costs. You're buying direct from a leading VoIP Network Provider so you'll get the absolute best pricing.

Startup

£8

per month + VAT

Most Popular
Growing Business

£13

per month + VAT

All Inclusive

£20

per month + VAT

Switching Your Business VoIP Provider Is Easy

No tech headaches, no downtime, no fuss. Whether you’re using a Virtual Landline, an 0800 freephone number or an 0333 number we can help you get the best pricing and features available.

1

Choose your VoIP Plan

Benefit from our industry leading tariffs and features. Simply choose the plan that suits your business the best and save money.

2

Keep your current number

Keep your current number by simply filling out our porting form. Want a fresh start? Just choose one of our memorable numbers!

3

Leave the rest to Tamar

We’ll set everything up for you (With zero down time), communicating with your current provider for you.

4

That's it, you're ready to go

Start making and receiving crystal-clear calls with your new business VoIP system!

Why Choose Tamar For Your Business VoIP

Not all VoIP providers are built the same. We focus on three things: Reliability, Transparency and Support.

The best business VoIP desk phone with Tamar customer service

5-Star UK Customer Support

Tamar was built because our founders were tired of telecoms companies that never answer the phone, they wanted to provide a better offering by simply addressing a huge pain point in the industry. Our UK-based team answers quickly, speaks plainly and actually solves problems. No bots, no hours placed on hold, just real help when you need it.

Reliable Network – No Dropped Calls

We hear the same complaints from businesses switching to us; “Our calls keep dropping out”, “Customers can’t hear us properly”. Call quality depends on stability, not just internet speed. We help ensure your connection is set up properly, advise on network setup if needed and make sure your VoIP service is stable and clear.

Transparent Pricing With No Hidden Fees

One of the biggest frustrations in telecoms… “We were told one price and charged something else.”We keep pricing straight forward, no hidden add-ons, no confusing small print, no surprise charges and we don’t even offer unnecessary long-term contracts. Affordable doesn’t mean low quality, it means fair.

Your ISDN Switch Off Solution

The UK’s traditional phone network is being switched off. That means any traditional landlines WILL stop working. If your business still relies on these, you need to upgrade now. ISDN & PSTN alternatives are now more accessible than ever.

We speak to business every week asking:

The good news? With this surge of businesses needing to move, we’ve made it incredibly simple to replace ISDN with VoIP. We even made a VoIP guide if you’re new to Business VoIP Systems.

You can keep your existing number, use our VoIP desk phones or our free apps on your mobile and make the switch with minimal disruption. No complicated install, no engineering visits, no downtime.

Just a modern, internet based VoIP Phone System that’s clearer, more flexible and ready for the future. We’ll handle the setup and Porting for you, so your customers won’t even notice a change.

business landline alternative - ISDN VoIP Solution
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VoIP Phone Handsets For UK Businesses

Prefer a physical desk phone for VoIP? No problem.

We supply a range of modern VoIP handsets from leading VoIP phone brand, Yeaklink – trusted by businesses worldwide for clear audio, durability and ease of use. Perfect for offices, reception desks and growing teams.

Explore A Range Of Business VoIP Desk Phones & Handsets​

We supply quality business handsets & desk phones from Yealink. These VoIP Phones are hand selected by us so we can provide you with the best support and setup. Every VoIP Phone handset you buy with Tamar Telecom for your business number will come fully configured, so you can just plug in and start making business calls. Don’t want to use a desk VoIP Phone? No problem, we have a free VoIP mobile app you can use anywhere!

UK Support Your Business Can Count On

With Tamar you can pick up the phone and speak to a real human who knows and understands VoIP and business needs. Seriously, try it, give us a call and speak to our team, the proof is in the pudding they say!

Our office is open Monday – Friday 9am till 5:30pm and calls are usually answered in under 10 seconds.

VoIP Vs Traditional Landlines

For decades, businesses relied on traditional landline phone systems connected through copper phone lines. But with the UK’s legacy phone network being phased out, many businesses are now switching to VoIP phone systems as a modern landline alternative.

What’s the difference between VoIP & traditional landlines?

Traditional landlines rely on physical infrastructure and fixed locations, while VoIP (Voice over Internet Protocol) allows you to make and receive calls over the internet. For small businesses, this change brings major advantages in flexibility, cost, and features.

Do VoIP Calls Sound as Good as Landlines?

A common question we hear is: “Is VoIP call quality as good as a traditional landline?”

With a stable internet connection, VoIP calls are typically just as clear, often clearer, than traditional phone lines. Modern VoIP technology is designed to deliver high-quality audio with minimal delay, and most businesses find the call experience improves once they switch.

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Traditional Landlines VS Business VoIP Phone Systems Comparison Table

Our comparison table for Traditional Landlines VS VoIP Systems shows switching to VoIP is not only saving businesses money, it’s creating more flexibility, unlocking new ways to scale business and adding advanced features to improve the customer journey. While initially it can be an inconvenience to have to make the switch, the comparison shows long term UK businesses will be better off.

Traditional Landline

Around £22.86 – £32.20 / month

Tamar VoIP Phone

From £8 / month

Future-Proof Your Business Phone System

With the UK’s traditional phone network being phased out, switching to VoIP as an alternative to landlines ensures your business stays connected long into the future.

Whether you’re replacing an old phone line or upgrading your entire system, VoIP gives you a modern, flexible solution built for today’s businesses.

Who Is Tamar Perfect For?

Which businesses is VoIP suitable for

VoIP For Small Businesses

Professional phone systems without enterprise pricing.

VoIP For Remote & Hybrid Teams

Take calls from anywhere while keeping one business number.

VoIP For Trades & Field Workers

Send calls to your mobile and stay reachable on site while keeping a pro number.

VoIP For Startups

Low-cost, flexible phone systems that grow with you.

VoIP For Growing Teams

Add users and numbers instantly as your business grows.

VoIP For SME's

VoIP systems with all your business features included as standard.

VoIP Business Call On Mobile App

Clear VoIP Call Quality & Network Reliability

If you’ve experienced dropped calls, audio delay or crackly conversations on VoIP before, you’re not alone. Common VoIP complaints include dropped calls, one way audio, echo, lag or delay or even calls not connecting at all.

Poor VoIP call quality is often caused by high latency, jitter or packet loss on the network. The good news is these issues are preventable; you’ve just not been given the proper support.

You don’t need ‘Super-fast’ internet – You need stable internet.

Once you sign up with Tamar VoIP we don’t leave you to an abyss of support FAQ loops. We have a dedicated UK technical support team who can help you check your connection stability, optimise router settings and recommend options to you.

Ready For Reliable Business VoIP?

If you’re tired of sub-par providers losing you business, it’s time for something better. Tamar VoIP is the reliable choice for business VoIP Solutions based on thousands of 5-star reviews.

Other VoIP Providers

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Tamar VoIP Gives You

FAQ: VoIP Phones & Systems

VoIP stands for Voice over Internet Protocol. Instead of using traditional analogue phone lines, VoIP converts your voice into digital data and sends it over the internet to the person you’re calling. This allows businesses to make and receive calls using desk phones, computers or mobile apps while keeping the same phone number.
Often yes, but call quality depends on having a stable connection (not just “fast” internet). If calls are dropping, cutting out, or you’re getting delay/echo, it’s usually down to Wi-Fi, network congestion, or router settings. Our in-house technical team help you check the setup and recommend improvements so your calls stay clear and reliable.

Yes, in most cases you can keep your current number by porting it to VoIP. We’ll guide you through the porting process and let you know what to expect and how long it should take. Our dedicated porting team will communicate with your current provider, so we’ll handle everything for you and ensure there’s zero downtime to your service – we port numbers everyday so you’re in the best place.

Porting times vary by provider and number type, but it typically takes a few working days once the information is correct. We’ll confirm the expected timeframe during setup and our porting team will be happy to keep you updated throughout the process.

Most businesses want the basics done brilliantly: Call routing, voicemail, call transfer, auto-attendant/IVR (Virtual Switchboard), hunt/ring groups, business hours and a simple management portal or app. You’ll have all of this available and more, we’ll help you set up what you actually need.

You don’t need “gigabit” internet, you need stable internet. As a rough guide, allow around 100 kbps per call (up and down) for good-quality VoIP, plus headroom. If you’re on Wi-Fi, router quality and signal strength matter a lot.

Yes. Traditional phone services are being retired, and many businesses are moving to VoIP as a future-proof replacement so they don’t get caught out when older lines stop working. You can see all the working updates with BT or regulator Ofcom.

You can set up failover options (like routing calls to a mobile) so you’re still reachable. This is a huge advantage to the Tamar VoIP phone system, we understand businesses need reliability over all else.
Yes. Unlike traditional landlines, VoIP allows multiple simultaneous calls without installing extra physical phone lines. The number of calls depends on your available bandwidth and plan.

Many VoIP systems can be set up within a few hours to a couple of days, depending on number porting and hardware configuration.

Because everything is cloud-based, there is usually no complicated installation or engineering visit required.

A virtual phone number allows you to receive calls on a chosen number (such as 0800, 0333, or local numbers) and route them to another device.

A VoIP phone system goes further by providing full call management features such as extensions, call routing and business phone apps.

Yes. Modern VoIP networks are built on cloud infrastructure with redundancy and failover systems.

Many businesses now rely entirely on VoIP for their communications because it offers greater flexibility and reliability than traditional phone systems.

No. VoIP works on most modern broadband connections, including standard fibre and business broadband. What matters most is connection stability rather than raw speed. Even modest broadband connections can support several simultaneous VoIP calls.

Absolutely. VoIP is ideal for small businesses because it provides professional phone system features without the cost of traditional PBX hardware. Sole traders can benefit from features like call routing, custom branded voicemail and professional business numbers with Timed Diverts so you can set your working hours.
Yes. Many VoIP providers offer mobile apps that allow you to make and receive calls using your business number on your smartphone. This helps keep personal and business calls separate while staying reachable anywhere. With Tamar you’ll get our VoIP phone apps completely free, included with all our business VoIP tariffs.
Yes. One of the biggest advantages of VoIP is portability. Because the system runs through the internet rather than physical phone lines, you can move offices without changing your phone system or numbers.
This usually happens because of network congestion, WiFi instability, or incorrect router configuration. Using a wired connection, prioritising voice traffic (QoS), and ensuring adequate bandwidth can significantly improve call quality. Don’t worry, with Tamar our dedicated support team will be able to help you get the best quality VoIP calls.

Most businesses need:

  1. A stable internet connection
  2. VoIP desk phones or a mobile/desktop softphone
  3. A router or network capable of handling voice traffic

Some businesses also use VoIP adapters (ATA) to connect traditional handsets to their internet connection.

Yes. Many VoIP systems integrate with tools such as:
  1. CRM platforms
  2. Helpdesk software
  3. Microsoft Teams
  4. Messaging platforms like WhatsApp Business
This allows businesses to manage communication more efficiently.

Yes. Most VoIP systems work with any UK broadband provider, meaning you don’t need to change your internet service to switch to VoIP.

VoIP WhatsApp Business Integration

Open another avenue for customers to connect with you.

With WhatsApp Business integration, Tamar VoIP lets you manage customer conversations alongside your business phone system, so you never miss an enquiry.

Whether it’s a quick question, booking confirmation or support message, WhatsApp gives customers a fast and familiar way to reach you.

Why Add WhatsApp to Your Business Phone Setup?

VoIP Whatsapp Business Integration

iOS & Android Mobile VoIP Apps

Make and receive calls from anywhere in the world. Download the Tamar Phone App on iOS or Android to stay connected wherever you are. Use your business number on your mobile device and enjoy reliable calling whether you’re in the office, working remotely, or travelling.