Written by Julia Watts Updated on 9 August 2022 On this page What is a VoIP phone system? What is hosted VoIP? Top 7 best UK VoIP providers 8x8 RingCentral Vonage GoTo bOnline Dialpad Nuacom The best VoIP providers in the UK: verdict 4 Best entry-level VoIP office phones Grandstream GXP2200 Yealink T23GN Poly VVX 601 Mitel IP485G 5 Best DECT (cordless) VoIP office phones Panasonic KX-TGP600 Mitel Aastra 632 Gigaset SL785 Yealink W52P Grandstream DP720 Benefits of VoIP for small businesses VoIP phone accessories Expand The best VoIP provider in the UK is 8×8. During our extensive research, we found that 8×8 offers a broad range of excellent features, while also scoring incredibly highly for its customer support, scalability, and security functions – making it a great all-rounder for businesses. RingCentral is our close second, offering a similar solution, but with fewer features.If neither of those are right for you, don’t fret. Our expert researchers have selected five more top UK VoIP providers that could meet your needs perfectly. Read on to find out what each of these providers has to offer, what they’re best at, how much they cost, and more. If researching and choosing the best VoIP provider seems like a daunting task, try our free quote-finding tool, which quickly provides the curated guidance you need. Simply answer a few questions about your business’s needs, and we’ll match you up with VoIP providers that can meet them. They’ll then be in touch directly to chat, answer your questions, and offer tailored, no-obligation quotes. It’s a quick, easy way to compare the best providers for you. Swipe right to see more 0 out of 0 backward forward Best all-round 8×8 Best for customer service teams RingCentral Best for small businesses Vonage Best for startups GoToConnect Best for desk phone compatibility bOnline Best for conversational AI Dialpad Talk Best for customer satisfaction Nuacom 4.7 4.5 4.4 4.2 3.5 3.8 3.5 Pricing £10 – £135 per user, per month Pricing £7.99 – £29.99 per user, per month Pricing £9 – £16.50 per user, per month Pricing £8.95 – £39.95 per user, per month Pricing £6 – £14.95 per user, per month Pricing £12 per user, per month – bespoke Pricing £14.99 per user, per month – bespoke Domestic minutes Unlimited Domestic minutes 0 – 2,000 inbound and 100 – 4,000 outbound (depending on pricing plan) Domestic minutes 0 – unlimited (depending on pricing plan) Domestic minutes Unlimited Domestic minutes 100 – unlimited outbound (depending on pricing plan), unlimited inbound Domestic minutes Unlimited Domestic minutes Unlimited International minutes Unlimited to up to 48 countries International minutes Not included International minutes Not included International minutes 0 – unlimited to 50+ countries (depending on plan) International minutes Not included International minutes Not included International minutes Not included Free Trial Only on 8×8 Express Free Trial Free Trial Free Trial Free Trial Free Trial Free Trial Try 8x8 Get Quotes Get Quotes Get Quotes Get Quotes Get Quotes Get Quotes What is a VoIP phone system?VoIP stands for Voice Over Internet Protocol, and refers to the software-based tech that allows businesses to make and take calls over the internet using their broadband connection, rather than through traditional phone lines.VoIP phones systems convert the sound signal of users' voices into digital data streams, which can then be sent in “packets” over the internet. The signal is passed through an Ethernet cable to the VoIP server or gateway, before connecting with the internet.Investing in a VoIP phone system gives you the freedom to use a variety of different devices to make and receive calls, including desk phones (also known as IP phones), computers or laptops, tablets, and smart phones. VoIP phone systems also enable much cheaper domestic calls, and low price per minute international calls, too. Not to mention the fact that they come with a variety of call management and collaboration features to make your communications with customers and teammates run smoothly and professionally.Watch our video for an explanation of VoIP and how it works: What is hosted VoIP?With hosted VoIP, the infrastructure is based ‘in the cloud’ rather than on your premises. A service provider owns, manages and maintains the infrastructure in a secure data centre. You pay a monthly fee to use the service. Most businesses find hosted VoIP to be the best option as it’s so easy and low-maintenance. If you've read enough, and are already sure that a VoIP telephone system is the best solution for your business, answer the quick question below. Then, simply provide us with a few brief details about your business, and the kind of phone system you're looking to implement.It takes about thirty seconds to complete, and it's free. When you're done, you'll receive quotes from several leading VoIP telephone system suppliers. Why not give it a try? Save by comparing VoIP phone system quotes from leading providers Do you already have a VoIP phone system? Yes No Answer a few questions – it only takes a minute The top 7 best UK VoIP providers: our reviewsAccording to our detailed research, the following suppliers offer the best VoIP phone systems available in the UK in 2022:8×8RingCentralVonageGoToConnectbOnlineDialpadNuacomRead on for more information about the VoIP services provided by each company, including features, prices, and the types of businesses they're well suited to. 8×8Best all-round VoIP provider in the UK 8x8 4.7 Pricing £10 – £135 Get an 8x8 quote Full review Why is 8x8 the best all-round VoIP provider? Our detailed research has shown that, overall, 8x8 is the best VoIP provider for UK businesses. It scored incredibly well in a number of our research categories, including features, security, customer support, and scalability, and scored 4.7 out of 5 overall – our highest rating.In particular, we love the breadth of features available on 8x8’s plans. As you’ll see in our key features analysis below, from the X2 plan upwards, 8x8 boasts all the features we know to be most important for productive comms with customers and clients – from unlimited minutes and local numbers to ring groups, call queues, and CRM integrations.8x8’s security features also impressed us, earning the provider a score of 5 out of 5 in this category. With multiple compliance certifications, multi-factor authentication, password rules, and TLS/SRTP encryption, 8x8 does a lot to ensure your company’s calls and data are kept under lock and key.Finally, as a result of our research, we can tell you that 8x8 offers a really good level of customer support (it also scored 5 out of 5 here) – something any provider must do before we could reasonably call it the best! 8x8 has a user forum and a knowledge base to peruse, and a 24/7 live chat function and phone line for those out-of-hours issues. Email support is also available for your less time-sensitive queries. Read more + Read less - Strengths Offers the best variety of features, with super generous video and call conferencing Excellent 24/7 customer support Lots of security features, including encryption and compliance certifications Easy to scale Weaknesses Can become expensive, with prices reaching as high as £135 per user, per month No spam prevention, while this is offered by GoTo and Vonage Pricing See more See less PackageStarting price per user, per month (paying annually)Starting price per user, per month (paying monthly) Express £10 £10 X2 £19 £25 X4 £36 £47 X6 (with contact centre features) £85 N/A X7 (with contact centre features) £105 N/A X8 (with contact centre features) £135 N/A Pricing correct as of August 2022As we’ve noted, cost is 8×8’s main downfall. In our in-depth analysis, it earned a score of 2.5 out of 5 for its prices, which reflects the fact that 8×8 is one of the most expensive phone systems on the market. That said, you do pay for what you get, and 8×8 is bursting with more excellent features than the competitors on this list. It’s also worth noting that 8×8 scored 4.9 out of 5 for scalability, so investing in it now could mean easier growth in the future.8×8’s key features for businessesExpressX2X4X6X7X8Unlimited domestic minutes✓✓✓✓✓✓Unlimited international minutes✘✓ To 14 countries✓ To 48 countries✓ To 48 countries✓ To 48 countries✓ To 48 countriesLocal numbers✓✓✓✓✓✓Ring group✘✓✓✓✓✓Call queues✘✓✓✓✓✓Video callingUp to 100 peopleUp to 500 peopleUp to 500 peopleUp to 500 peopleUp to 500 peopleUp to 500 peopleCall conferencingUp to 100 peopleUp to 500 peopleUp to 500 peopleUp to 500 peopleUp to 500 peopleUp to 500 peopleCRM integration✘✓✓✓✓✓Uptime guarantee99.999% Uptime SLA99.999% Uptime SLA99.999% Uptime SLA99.999% Uptime SLA99.999% Uptime SLA99.999% Uptime SLAOnboarding support‘Customer Success Managers’, likely at an extra charge‘Customer Success Managers’, likely at an extra charge‘Customer Success Managers’, likely at an extra charge‘Customer Success Managers’, likely at an extra charge‘Customer Success Managers’, likely at an extra charge‘Customer Success Managers’, likely at an extra chargeLive customer support24/7 live chat and phone line24/7 live chat and phone line24/7 live chat and phone line24/7 live chat and phone line24/7 live chat and phone line24/7 live chat and phone lineIn our research, 8×8 scored 4.6 out of 5 for its range of features – the best score achieved by any of the providers we analysed. Boasting all the features we’ve identified as most important for business communications and smooth operations, it’s not hard to see why 8×8’s done so well here.One thing to note is that 8×8 is one of the most generous VoIP providers when it comes to call conferencing and video meetings, with capacity for a whopping 500 people to join in at once. This could be a very helpful thing if you tend to run company-wide meetings, or you’re looking to scale your business at pace.It’s also worth noting that 8×8 can integrate with a solid range of CRM systems: Salesforce, Copper, Freshdesk, Hubspot, MS Dynamics, Pipedrive, Zendesk, Zoho, 1CRM, Bullhorn, Copper, and Sugar.Of course, you can see that the cheapest plan, 8×8 Express, misses out on a few of the features we’d want to see. That said, this is an entry level plan tailored to startups and small businesses, and the absent features aren’t necessarily ones you’d need if you’re in that boat.How does 8×8 compare to its competitors?In a comparison against other UK VoIP providers, 8×8 comes out on top in most criteria. But one thing it absolutely does better than any other provider is offer a huge variety of features. In this respect, it especially outshines GoToConnect, Nuacom, and bOnline, all of which offer a much more limited range of features.That said, all of these providers (and GoToConnect in particular) get their own back when it comes to pricing, as their systems are all better value for money than 8×8’s – coming with fewer features, yes, but cheaper prices to match. RingCentralBest VoIP provider for customer service teams RingCentral 4.5 Pricing £7.99 – £29.99 Get free quotes Full review Why is RingCentral best for customer service teams? Scoring 4.5 out of 5 overall in our research, RingCentral is a close second to 8x8. However, it’s less of a solid all-rounder and more of an excellent option for customer service teams specifically.Customer service teams have to deal with a lot of incoming calls. RingCentral boasts a great range of features to help make light work of this, including a virtual receptionist, local toll-free numbers, and customisable greetings and hold music on all of its plans. Upgrading to a Premium or Ultimate plan will also enable you to set up ring groups and call queues, to organise your callers even more smoothly. RingCentral also comes with external video calling and SMS features, giving your customers more ways to get in contact with your team.Of course, training is hugely important in the world of customer service - your team’s phone manner has to be great, after all. RingCentral comes with features that can help with this, including call transcripts, call recording, call monitoring, call whisper, and call barge. Be wary, though, that RingCentral’s cheapest packages don’t offer all of these, so you’ll have to pay a little more for the full breadth of training and monitoring tools.Finally, it’s worth knowing that RingCentral comes with ready-made integrations with helpdesk, workspace, email, conferencing, and messaging platforms to help unify your comms and easily hold customer data. Once again, though, most of this is only available on RingCentral’s Premium and Ultimate plans. Read more + Read less - Strengths Excellent customer support Offers an excellent range of ready-made integrations Comes with a great range of features, second only to 8x8 Very easy to scale Weaknesses Doesn't offer great value for money, scoring 2.3/5 in our cost analysis Aggregated customer review score of 3.5/5 Pricing See more See less Essentials package Prices are per user, per monthStandard package Prices are per user, per monthPremium package Prices are per user, per monthUltimate package Prices are per user, per month £12.99 For one user £19.99 For one user £24.99 For one user £29.99 For one user £7.99 For 2–19 users £14.99 For 2–19 users £19.99 For 2–19 users £24.99 For 2–19 users £7.99 For 20–99 users £13.99 For 20–99 users £18.99 For 20–99 users £23.99 For 20–99 users £7.99 For 100+ users £12.99 For 100+ users £17.99 For 100+ users £22.99 For 100+ users Pricing correct as of August 2022In our analysis, RingCentral scored 2.3 out of 5 for its pricing, which isn’t great. At first glance, RingCentral is a nicely affordable option, and cheaper than 8×8. But we gave it a lower score because, on closer inspection, you’ll find that it offers less value for money. As you’ll see in the key features analysis below, the majority of RingCentral’s really valuable features only become unlocked when you pay for its more expensive packages. Its minute allowances, in particular, are very low on its entry level plans, while other providers offer unlimited minutes right from the off.RingCentral’s key features for businessesEssentialsStandardPremiumUltimateUnlimited domestic minutes✘ 0 inbound, 100 outbound*✘ 250 inbound, 750 outbound*✘ 1,000 inbound, 2,000 outbound*✘ 2,000 inbound, 4,000 outbound*International minutes✘✘✘✘Local numbers✓✓✓✓Ring group✘✘✓✓Call queues✘✘✓✓Video calling✘Up to 100 peopleUp to 200 peopleUp to 200 peopleCall conferencing✘✓✓✓CRM integration✘✘✓✓Uptime guarantee99.999% Uptime SLA99.999% Uptime SLA99.999% Uptime SLA99.999% Uptime SLAOnboarding support✘✓✓✓Live customer support24/7 live chat and phone line24/7 live chat and phone line24/7 live chat and phone line24/7 live chat and phone line*inclusive minutes per account, per monthDuring our research, we gave RingCentral’s features a score of 4.3 out of 5, our second-highest features score (after 8×8). That’s because it comes with an excellent variety of features to help manage your business’s internal and external comms.One thing to be aware of is that RingCentral’s Essentials plan does what it says on the tin: it provides VoIP system essentials, but not a lot more. It’s on RingCentral’s higher tiered packages that you’ll find things like video conferencing, CRM integrations, and more generous inclusive minutes, so if you’re running a larger business with more varied needs, do bear that in mind.That said, once you do have access to CRM integrations, you’ll almost definitely be able to conjoin RingCentral with your system of choice – because it can integrate with an amazing 97 different CRM apps.How does RingCentral compare to its competitors?RingCentral is hot on 8×8’s heels in lots of respects, with a breadth of features that comes closer to 8×8’s than any other provider… but falls short of matching it, missing benefits such as unlimited domestic minutes, and features including custom call lists. Plus, ready-made integrations are available on fewer of its plans. However, it does match 8×8’s shining customer support offering, and provides just as much scope for easily scaling your business as 8×8 does. Save by comparing VoIP phone system quotes from leading providers Do you already have a VoIP phone system? Yes No Answer a few questions – it only takes a minute VonageBest VoIP provider for small businesses Vonage 4.4 Pricing £9 – £16.50+ Get free quotes Why is Vonage best for small businesses? Vonage is our top choice for small businesses for a number of reasons. Firstly, it offers excellent value for money (in these stakes, it was beaten only by GoToConnect, our top pick for startups), with plenty of features, including unified communications tools such as video conferencing and team messaging, available even on Vonage’s cheapest plans. Unlimited domestic minutes only kick in on the Professional and Ultimate plans but, as you’ll see, these packages are still very affordably priced. We know small businesses are often looking for pathways to growth, so it’s great that Vonage did very well in our scalability comparison, scoring 4.5 out of 5 on this front. The ring group, call queue, and call routing features on Vonage’s more advanced plans will help your team handle growing volumes of calls, while call recording, monitoring, and analytics will help you train new staff and ensure the quality of your business’s comms is top notch. There’s also the fact that Vonage allows an unlimited number of users on all of its plans, so you won’t be forced to pay for an upgrade once your team hits a particular size.Small businesses should also feel reassured by the decent level of support Vonage offers to its users, including a user forum, a knowledge base, and live chat, email, and phone support (though you should be aware that these lines aren’t open 24/7). Vonage’s 99.999% uptime guarantee means it’s unlikely your all-important income will be unexpectedly impacted by downtime. Read more + Read less - Strengths Great value for money, with affordable pricing plans Easy to scale One of the only providers with a spam prevention feature Weaknesses Less generous features than 8x8, RingCentral, and Dialpad Weaker security features than some other providers Pricing See more See less PackagePrice (per user, per month) Select £9 Professional From £12.50 Ultimate From £16.50 Pricing correct as of August 2022Vonage’s value for money is its key strength, earning a score of 4.3 out of 5 for pricing in our research. With prices ranging from just £9 to £16.50 per user, per month, Vonage’s monthly fees are incredibly low for such a comprehensive system, with unified communications features including video conferencing and team messaging available on all plans.Vonage’s key features for businessesSelectProfessionalUltimateUnlimited domestic minutes✘✓ To domestic landlines✓International minutes✘✘✘Local numbers✓✓✓Ring group✘✓✓Call queues✘✓✓Video calling✓✓✓Call conferencingUp to 3 people free, up to 30 at an additional costUp to 3 people free, up to 30 at an additional costUp to 3 people free, up to 30 at an additional costCRM integrationAt an additional costAt an additional costAt an additional costUptime guarantee99.999%99.999%99.999%Onboarding supportAt an additional costAt an additional costAt an additional costLive customer supportLive chat and phone lineLive chat and phone lineLive chat and phone lineSomething that’s likely to jump out at you is how many of these key features come at an additional cost. Obviously, this isn’t ideal when other VoIP providers include things like CRM integration and onboarding support for free. That said, Vonage’s monthly fees are already cheap enough that paying extra on top shouldn’t necessarily break the bank.How does Vonage compare to its competitors?As we've mentioned, Vonage offers great value for money. In this respect it beats all the VoIP providers on this list… except for bOnline, which offers a very similar level of value for money (bOnline is cheaper than Vonage, but also less robust), and GoTo, which offers the best bang for your buck. Vonage also stands out for its scalability, again proving itself to be easier to scale than all the providers on this list except for 8×8 and RingCentral.When it comes to features, though, Vonage is fairly middle of the road. It doesn't offer as many as 8×8, RingCentral, or Dialpad, but it offers a better breadth of features than bOnline, Nuacom, and GoTo. GoToConnectBest VoIP provider for startups GoTo 4.2 Pricing £8.95 – £39.95 Get free quotes Full review Why is GoTo best for startups? GoTo’s phone system, GoToConnect, is our favourite VoIP system for startups. When you’re starting a business, you have to make sure you’re getting as much as you can for as little money as possible. During our research, GoToConnect was our top scorer in the category of value for money, earning 4.5 out of 5 – so it’s a good bet if you’re looking to secure helpful features like unlimited domestic minutes and multiple communications channels (such as phone, video chat, and messaging) for a relatively small price tag.As your startup accrues a customer base, you’ll need a VoIP system that can help you communicate with potential customers and clients as professionally as possible. With GoToConnect, you can set up a virtual receptionist, customisable on-hold music, recorded greetings, and voicemail capability to give callers a polished experience when they get in touch. You can also set up local numbers, so customers don’t have to pay to phone you. Better still for budget-conscious new businesses, these features are all available on GoToConnect’s cheapest package.Of course, it’s likely that you won’t stay at startup size forever. Fortunately, GoToConnect’s unlimited user limit and available call management features mean it’s a scalable system – it earned a scalability score of 4.4 out of 5 in our analysis. Read more + Read less - Strengths Offers the best value for money out there Has a good reputation among customers, with an aggregated review score of 4.4 International calling to over 50 countries Weaknesses Fewer ready-made integrations than the other providers (except Dialpad) No 24/7 customer support or live chat Slightly lower uptime guarantee of 99.996% Pricing See more See less PlanStarting price per user, per month Basic £8.95 Standard £18.95 Premium £39.95 Pricing correct as of August 2022If bang for your buck is what you’re after, GoToConnect has got it. Earning a top score of 4.5 out of 5 in our analysis of its pricing, GoToConnect offers the best value for money out of all the VoIP providers we researched. Not only does it give you unlimited domestic minutes on all plans, it also enables you to call over 50 different countries on its Standard and Premium plans, while providing solid unified communications features for collaboration across the board.GoToConnect’s key features for businessesBasicStandardPremiumUnlimited domestic minutes✓✓✓International minutes✘✓ To 50+ countries✓ To 50+ countriesLocal numbers✓✓✓Ring group✓✓✓Call queues✓✓✓Video callingUp to 4 peopleUp to 150 peopleUp to 250 peopleCall conferencing✓✓✓CRM integration✓✓✓Uptime guarantee99.996%99.996%99.996%Onboarding support✓✓✓Live customer supportPhone linePhone linePhone lineThe first thing you might notice here is that even GoToConnect’s cheapest plan comes with the vast majority of the features we know to be most important for businesses (everything except inclusive international minutes, but these are unlikely to be integral to a UK startup’s operations anyway). We weren’t lying when we said this VoIP software offers brilliant value for money!That said, there are a few weaknesses to pluck out from our key features analysis. GoToConnect provides free CRM integration, but it can only integrate with Salesforce or Zoho. Compared with RingCentral’s ability to integrate with 97 different CRM systems, GoToConnect comes off a little stingy here. Of course, this won’t matter if your CRM of choice is Salesforce or Zoho anyway.As we’ve already mentioned, GoToConnect’s customer support isn’t very comprehensive. It can offer you support over the phone and via email, but these lines aren’t open 24/7, and – somewhat archaically – there’s no live chat option for those of us who prefer to tap out a question and get an instant response.Finally, it’s worth noting that GoToConnect’s video conferencing platform will only allow up to four participants per call on the Basic plan. Obviously this will be enough for you if your team’s no larger than this, but you should bear in mind that, as your team grows, you may need to upgrade to the Standard plan for larger video-based meetings.How does GoToConnect compare to its competitors?In a comparison against its competitors, GoToConnect does well, with a better average customer review score than 8×8, RingCentral, and Vonage. We also rated it as easier to scale than Nuacom, Dialpad, and bOnline. Its strongest advantage, though, is the fact that it offers better value for money than all the providers on this page (have we mentioned that already?).However, GoToConnect didn't fare so well when we compared integrations. Only Dialpad has a smaller range of ready-made integrations than GoToConnect – the other providers on this page all come ready to integrate with a bigger range of software. It's also worth noting that GoToConnect's array of features isn't as comprehensive as the feature sets you'd get with 8×8, RingCentral, Dialpad, or Vonage. bOnlineBest VoIP provider for desk phone compatibility bOnline 3.5 Pricing £6 – £14.95 Get free quotes Why is bOnline best for desk phone compatibility? During our research, we found that bObline is compatible with the biggest variety of third-party desk phone manufacturers. All the VoIP systems we analysed are compatible with one to four desk phone brands – except for bOnline, which is compatible with seven: Panasonic, Yealink, Poly, Aastra, Alcatel, AudioCodes, and Htek.But why is this significant? Well, it means that if you already have desk phones in situ, the likelihood that a bOnline system will be able to slot neatly into that infrastructure, without the need for you to spend money on all new phones, is pretty high. That said, there is one notable absence on bOnline’s list of compatible phone brands: Cisco. So if you already have Cisco phones on your premises, that’s something to be aware of. Read more + Read less - Strengths Good option for small businesses, offering great value for money Excellent reputation among customers, with an aggregated review score of 4.5 Can also provide business fibre broadband, and web design services Weaknesses Offers fewer features than all the other providers, except Nuacom CRM integration costs £5 extra on the cheaper plans Lacks security features, with a score of 1/5 for security Pricing See more See less PackagePrice per user, per month (paid annually) Pay As You Go £6 Unlimited Calling £12.95 Unlimited & Video £14.95 Pricing correct as of August 2022As we’ve mentioned, bOnline’s pricing is one of its major strengths, earning a good score of 4.3 out of 5 in our cost analysis. Ranging from just £6 to £14.95 per user, per month (when paid for annually), it’s one of the cheapest VoIP providers you’ll come across. With unlimited minutes available on most plans, as well as free Yealink T31P desk phones on the Unlimited & Video package, bOnline offers excellent value for money.bOnline’s key features for businessesPay As You GoUnlimited CallingUnlimited & VideoUnlimited domestic minutesUnlimited inbound, 100 outbound*✓✓International minutes✘✘✘Local numbers✓✓✓Ring group✘✓✓Call queues✘✓✓Video calling✘✓✓Call conferencing✘✓✓CRM integrationAvailable for £5 extra per monthAvailable for £5 extra per month✓Uptime guarantee99.9%99.9%99.9%Onboarding support✘✓✓Live customer supportLive chat and phone lineLive chat and phone lineLive chat and phone line*Inclusive minutes per user, per monthAs you can see, bOnline’s cheapest package, Pay As You Go, is super basic, offering very few of the key features we’d recommend businesses look to secure.Really, this plan should only suit you if you’re a single-person operation with a pretty small customer base, who’s just looking to set up a professional phone number. If you run a larger business than this, you’ll find much more value in bOnline’s more expensive plans (take the word “expensive” with a pinch of salt here, because even bOnline’s most expensive plan is actually very cheap).Another thing to take note of is the fact that bOnline charges £5 per month for CRM integration on its Pay As You Go and Unlimited Calling plans. This is a pain, for sure, when other providers include ready-made CRM integrations in their packages. However, these two bOnline plans are pretty cheap to start with (have we mentioned that already?), so an extra fiver shouldn’t necessarily break the bank. Helpfully, bOnline can integrate with 11 different CRM systems, including Salesforce, MS Dynamics, and Hubspot.How does bOnline compare to its competitors?Among its competitors, bOnline stands out when it comes to price, offering as much bang for your buck as Vonage (bOnline has fewer features, but is also cheaper, so this balances out). Here it's beaten only by GoTo, the best VoIP provider for value for money. bOnline also boasts an excellent reputation among customers, with an aggregated customer rating of 4.5 – higher than the scores customers gave Dialpad, GoTo, Vonage, RingCentral, and 8×8. The only VoIP provider with a higher customer score is Nuacom, with 4.6.That said, there are a few areas where bOnline is beaten by its competitors – its security features, scalability, and customer support options are all bettered by all the other providers on this list. DialpadBest VoIP provider for conversational AI Dialpad 3.8 Pricing £12 – bespoke Get free quotes Why is Dialpad best for conversational AI? We like to recommend Dialpad because its phone system has a really standout – and somewhat futuristic – feature: conversational AI. Known as Dialpad Ai, this function accurately transcribes your phone calls in real-time, flags whether or not the conversation is negative or positive (empowering you to check in on the call transcripts that need reviewing), automates post-call summaries, including highlights and action items, and enables you to create notes with tips and advice that appear on screen when certain keywords or phrases are spoken on a call. Reassuringly, Dialpad Ai can be switched off to avoid transcribing sensitive calls.This feature would prove most helpful for businesses with sales teams, call centres, or contact centres, as it can help your team to quickly make sense of high volumes of calls, with instant visibility over outcomes and next steps, and access to in-the-moment coaching. Read more + Read less - Strengths Great customer support, including a user forum, knowledge base, and live chat Offers the best range of features after 8x8 and RingCentral Great customer reputation, with an aggregated review score of 4.4 Ring group functionality available on the cheapest plan Weaknesses Fewest ready-made integrations with other systems Not very easy to scale, scoring 3.3/5 in our scalability analysis Only set up one local number per user Only the most expensive package has an uptime guarantee Pricing correct as of August 2022Dialpad’s pricing is good, earning it a reasonable score of 4 out of 5 in our pricing analysis. Starting at £12 per user, per month, Dialpad is certainly affordable, but its plans don’t offer quite as much value for money as GoTo, Vonage, or bOnline. You should also take note of the fact that the Enterprise plan comes with bespoke pricing – this will be worked out on a case-by-case business, so it’s difficult to predict how much it’ll cost without getting a quote directly from Dialpad.Dialpad’s key features for businessesStandardProEnterpriseUnlimited domestic minutes✓✓✓International minutes✘✘✘Local numbersOne per userOne per userOne per userRing group✓✓✓Call queues✘✓✓Video calling✓✓✓Call conferencing✓✓✓CRM integration✘✓✓Uptime guarantee✘✘100%Onboarding supportAt an additional costAt an additional costAt an additional costLive customer supportLive chat24/7 live chat and phone line24/7 live chat and phone lineDialpad’s Pro and Enterprise plans provide a lot of the most important features for businesses. And, alongside GoTo and Nuacom, Dialpad is one of the only providers we analysed that offers ring group functionality on its cheapest plan, which is a nice tick in its favour.However, there are limitations to call out. Firstly, ready-made CRM system integration is only available with Salesforce, Zendesk, and Hubspot, which is something to be aware of if you don’t use one of these three systems for your customer relationship management. That said, the software does have an open API, so you may be able to create your own integration with a CRM system of your choice.It’s a little disappointing that Dialpad’s Enterprise plan is the only package that actually comes with an uptime guarantee. That guarantee is 100%, which in theory means that your system will never go down, but it’s a shame this excellent promise isn’t replicated for Standard and Pro users, who are left to wonder how likely their system is to suffer an outage.Finally, it’s worth pointing out that Dialpad only enables you to set up one local number per system user. Of course, that’s totally fine if that’s all you need. But if you’d like your integral team members to be contactable on a variety of numbers, well, that’s not possible with Dialpad.How does Dialpad compare to its competitors?Dialpad offers a great selection of customer support channels, and earned a customer support score (4.5) that's only beaten by 8×8 and RingCentral. Its variety of features is also really solid, and again, 8×8 and RingCentral are the only VoIP providers that offer a more comprehensive array of features. But Dialpad finally one-ups these two giants when it comes to price and customer satisfaction – Dialpad's prices are cheaper, and its average customer review score (of 4.4) is higher than 8×8's and RingCentral's (both 3.5).Dialpad's definitely let down, though, by its lack of ready-made integrations – it boasts the fewest of all the providers on this list. It's also not as easy to scale as 8×8, RingCentral, Vonage, GoToConnect, or Nuacom. bOnline is the only system that's more difficult to scale. NuacomBest VoIP provider for customer satisfaction Nuacom 3.5 Pricing £14.99 – bespoke Get free quotes Why is Nuacom best for customer satisfaction? When shopping around for business software, we know how useful it can be to look at user reviews. More often than not, they’re the first things we seek out: after all, they’ve been written by real people, who’ve had real experience with the system in question.So it’s a huge pro for Nuacom that, of all the UK VoIP providers we analysed, it has the best overall review score from its customers. We aggregated user ratings from software review sites G2, Capterra, Trustpilot, and TrustRadius, resulting in a fantastic overall score of 4.6 out of 5 for this VoIP provider. Read more + Read less - Strengths Boasts the best customer review score on this page Set up ring groups and call queues on the cheapest plan Weaknesses Least generous range of features on this page No unified communications tools, like video chat or messaging Not great for scalability or ready-made integrations Pricing See more See less PlanStarting price (per user, per month) Unlimited £14.99 Call Centre £29.99 Enterprise Bespoke Pricing correct as of August 2022In our cost analysis, Nuacom scored 3.8 out of 5, which means it’s not the best VoIP provider out there when it comes to value for money. Starting at £14.99 per user, per month, its Unlimited plan is the most expensive entry-level VoIP package we researched. The jump up to £29.99 per user, per month on the Call Centre plan is quite a big leap to take for businesses that would want to advance to more advanced packages as they grow. That said, Nuacom is still cheaper overall than 8×8 and RingCentral.Nuacom’s key features for businessesUnlimitedCall centreEnterpriseUnlimited domestic minutes✓✓✓International minutes✘✘✘Local numbers✓✓✓Ring group✓✓✓Call queues✓✓OptionalVideo calling✘✘✘Call conferencing✓✓✓CRM integration✓✓OptionalUptime guaranteeOptionalOptionalOptionalOnboarding support15-minute session15-minute session15-minute sessionLive customer supportLive chat and phone lineLive chat and phone lineLive chat and phone lineWith Nuacom, you can set up ring groups and call queues even on the cheapest plan, which is generous considering that most VoIP providers only offer these features on more advanced plans (GoTo is the only other provider on this list that makes these features available straight away).On the flipside, though, one huge downfall for Nuacom is that it doesn’t come with any video conferencing capability. In fact, it doesn’t provide any unified communications features, with no sign of team messaging or document sharing tools either. Nuacom may be all about the VoIP phone technology, but nowadays, it’s reasonable for you to expect a more comprehensive collaboration platform from your VoIP provider, so you don’t have to pay more to sign up to additional systems. It seems Nuacom is a little behind on this front.It’s also interesting that Nuacom’s uptime guarantees are optional. We presume they’re add-ons that you can pay extra for, or negotiate to be included in your package.How does Nuacom compare to its competitors?As we've mentioned, Nuacom beats everyone else when it comes to customer satisfaction. But, interestingly, it's come up fairly average in most of our other research categories. For example, it's easier to scale than Dialpad and bOnline, but not as easy to scale as 8×8, RingCentral, Vonage, or GoToConnect. And, in some respects, Dialpad is worse than average – it offers the smallest range of features of all these VoIP providers. The best VoIP providers in the UK: the verdict Offering a dazzlingly comprehensive range of features alongside top notch security measures and customer support channels, as well as excellent scalability, our research has revealed that 8×8 is the best VoIP provider in the UK. RingCentral comes in close second, and is our top pick for customer service teams.If your business is still growing, you should know that Vonage is the best VoIP provider for small businesses, and GoToConnect the best option for startups. Meanwhile, bOnline is compatible with the biggest range of desk phones, and Dialpad stands out for its futuristic conversational AI features. Finally, Nuacom's the VoIP provider that has earned the very best average review score from its customers.But if you're still looking for help in choosing the best VoIP provider for your team – we know, all these choices can be overwhelming – our free quote-finding tool can help. Simply tell us a little about your business, and we'll match you up with the best VoIP providers for you. They'll then be in touch with tailored, no-obligation quotes. It's a quick and easy way to compare the right options for you. Top 10 VoIP Desk PhonesVoIP desk phones work with a cloud-based VoIP, or hybrid IP-PBX solution. They provide physical desk solutions – ie. not softphones – which are headset compatible. They can be used alongside other components from your VoIP phone system provider, such as smartphone applications and desktop computers.We’ve included our top picks for entry-level, wired VoIP systems and DECT (cordless) VoIP systems below: 4 Best entry-level VoIP office phonesThe selection of phones below includes basic, wired models that function a lot like conventional desk phones: 1. Grandstream GXP2200 Android desktop phone Grandstream GXP2200 This is an inexpensive corded multimedia Android VoIP phone. It features a responsive touchscreen LCD, in addition to hard keys for functions such as mute, voicemail, hold and so on. As this phone uses an Android operating system, it enables access to popular apps, such Skype, YouTube, Facebook, Twitter, and Google Voice.The Grandstream GXP2200 is a modern, feature-rich desk phone ideal for forward-thinking businesses. This VoIP phone will suit all types of organisations. Apps can be downloaded via Google Play Store, or you can create custom ones. It has a 4.3 inch touchscreen LCD.Price: £80 Overall Rating : ★ ★ ★ ★ ★ Key features:✓ Directory with 1000 contacts✓ Call history holds 500 records✓ Call transfer, forwarding and waiting✓ HD wideband audio 2. Yealink T23GN Dual Gigabit Ethernet IP phone Yealink T23GN A well-priced phone with an easy-to-use interface and HD audio. Features include: call hold, mute, one touch speed dial and call forwarding. It also has local three-way conferencing, ring tone selection and import, and a local phone book with 1000 entries.The Yealink T23GN is a full featured IP-PBX phone which accepts three lines, has caller display and anonymous call rejection. It’s a good all-round VoIP desk phone for any office, but especially small to medium sized businesses.Price: £75 Overall Rating : ★ ★ ★ ★ ★ Key features:✓ Large directory✓ Extensive features✓ Dual gigabit Ethernet ports✓ 132 x 64 white backlit display 3. Poly VVX 601 Poly VVX 601 The Poly (formerly Polycom) VVX 601 is a more advanced VoIP desk phone option. It gives exceptional call quality and has a large, very responsive touchscreen. This corded phone supports up to 16 lines, video conferencing and playback through the use of external USB cameras. It also features HD voice technology.The Poly VVX 601 is one of the most popular VoIP phones available. The bright display enables users to manage their calendars, and receive meeting and catch up reminders, all on their phone handset. This capability saves time and boosts productivity.Price: £215 Overall Rating : ★ ★ ★ ★ ★ Key features:✓ 4.3″ LCD touchscreen✓ Bluetooth integration✓ HD voice quality✓ Dual USB ports 4. Mitel IP485G Mitel IP485G A general office VoIP desktop phone, the IP485G has a backlit colour display with a searchable, expanded directory. It has built in visual voicemail alongside standard transfer, conference call and on hold features.The Mitel IP485G phone is ideal for an office-based professional. It has a full duplex speakerphone, visual voice and conferencing capability, and a 10/100/1000 Ethernet switch for Gigabit speed.Price: £75 Overall Rating : ★ ★ ★ ★ ★ Key features:✓ Eight lines✓ Expanded call history✓ LED indicators✓ 480 x 272 backlit colour display Best DECT VoIP Office PhonesVoIP DECT phones are cordless. This makes them more mobile than traditional VoIP telephones.The most innovative phones have a wide range of features including large colour LED displays, SMS facilities, and integrated phone books. VoIP DECT phones are manufactured by many of the big telecoms companies including BT, Mitel, Siemens, Panasonic, Cisco and Gigaset.Here’s our pick of the top five around today: 1. Panasonic KX-TGP600 DECT Phone Panasonic KX-TGP600 The Panasonic KX-TGP600 suits small to medium sized businesses which need a more mobile desk phone. It’s a wireless VoIP DECT phone which can fit eight handsets to each base and will handle eight simultaneous calls.This phone has a vivid colour screen and a long battery life. SRTP (Secure Real-Time Transport Protocol) is available for extra phone security. The phone has an excellent and extendable range.Price: £85 Overall Rating : ★ ★ ★ ★ ★ Key features:✓ Range of 100-200 feet✓ Noise reduction technology✓ 200 hours standby battery life / 11 hours talk time✓ Repeaters available to extend connection range 2. Mitel Aastra 632 DECT Phone Mitel Aastra 632 The Mitel 632 DECT is a hardy DECT business phone. It can be used outside, or in industrial environments. It’s perfect for factory floors and care or medical facilities, as it’s easy to clean and complies with hygiene requirements. It also has a sensor alarm and an emergency call key suited to hospitals or highly secure areas.A superb quality workplace phone for both general and specialised environments. It has a colour TFT display, extensive telephone book, ambient noise filter, and a mini USB PC interface, and many more features. The Mitel 632 has all the functionality and navigation you would expect, plus the added benefit of its robust design for certain workplaces.Price: £85 Overall Rating : ★ ★ ★ ★ ★ Key features:✓ 12 hour talk time✓ Man down, no movement and escape alarm✓ Hands-free operation✓ Compatible with high hygiene workplaces 3. Gigaset SL785 DECT phone Gigaset SL785 The Gigaset SL785 is ideal for home and office-use. It has positive reviews for its touchscreen interface with integrated answering machine (45 minute recording capacity) and ECO DECT technology for reduced battery and power usage.The slick design makes this model perfect for modern businesses and the clear display offers a number of functionality benefits. Other advantages include: directory transfer options and the ability to store multiple numbers under one directory entry.Price: £195 Overall Rating : ★ ★ ★ ★ ★ Key features:✓ Bluetooth enabled✓ Base handset locator✓ Call recording✓ 15 hour talk time 4. Yealink W52P Yealink W52P With a 1.8 inch colour display and intuitive user interface, the Yealink W52P offers all the standard features you would expect including intercom, transfer, call forwarding and three-way conferencing.With a 1.8” colour display and intuitive user interface. The Yealink W52P offers all the standard features you would expect including intercom, transfer, call forwarding and three-way conferencing.Price: £90 Overall Rating : ★ ★ ★ ★ ★ Key features:✓ Exceptional HD sound✓ Highly scalable✓ Up to 4 simultaneous calls✓ Up to 5 VoIP accounts 5. Grandstream DP720 DECT IP Phone Grandstream DP720 This is an inexpensive VoIP solution that gets the job done. Up to five phones can be attached to a single DECT hub and up to 10 SIP accounts per handset. It’s a full HD audio phone with a long range that’s perfect for small businesses or as a home phone.The Grandstream DP720 is a high quality DECT wireless IP phone designed for homes and small business. It has three-way local conferencing, phonebook, and DECT authentication and encryption technology. With a modern design and high-end features, it’s a great phone for a great price.Price: £50 Overall Rating : ★ ★ ★ ★ ★ Key features:✓ 10 hour talk time✓ 80 hour standby mode✓ 300 metre outdoor range, 50 metre indoor range✓ 5 phones per DECT base ▶ Read more: Best SIP providers UK The benefits of VoIP for your small businessVoIP brings several benefits for your business, no matter the size. Let's take a look four ways a VoIP system can help your business grow.1. Reduce costsThe adoption of a VoIP (Voice over Internet Protocol) telephone system for your small business can drastically reduce both your capex (capital expenditure) and opex (operational expenditure).In other words, not only is it a great long term investment, but it will start saving you money on your calls from day one.Providers such as One2Call offer free inter-site communication, which is hugely beneficial for your business, especially if you're looking to expand. Providers offer VoIP to UK landline calls for as little as 1p per minute.2. Flexible and mobile communicationsVoIP systems can work from any location with internet, or via a VPN (virtual private network). This makes them a great choice for if you run a smaller business, with staff who work from home. Telephone numbers can be retained and will remain directly associated with the main business office, allowing employees to use the same service.One good example of what UK VoIP providers can offer your small business comes from Voipfone, who deliver up to 800 different extensions (per account).These can be placed in any physical location, in the same office or internationally, and calls will be free of charge.3. Enable growthVoIP offers the potential to scale up operations as your business continues to grow.Additional ports can be easily configured and brought online to provide for an extended service, or withdrawn and taken down when you no longer need them.This can all be achieved seamlessly without disruption or down time, ensuring that communication between your employees and customers will not suffer.The V-Plan Business VoIP package from Vonage (from £12.25 per month) gives you unlimited dialling to UK landlines, as well as unlimited calls to Hong Kong, China, Singapore, Canada and the US. This makes it a great option if your business is looking to expand into exciting new territories.4. Connect to the futureStudies have shown that over 45% of UK businesses were already using VoIP phone systems in 2016 and that the majority of the rest would be doing so in the near future. And with call charges of up to 50% lower than BT and other providers, it’s no wonder so many savvy small businesses in the UK are making the switch. Are you? Save by Comparing VoIP Phone System Quotes from Leading Suppliers Do you already have a VoIP Phone System? Yes No VoIP Phone AccessoriesSome businesses choose to invest in VoIP headsets, which have a number of benefits including increased employee comfort when making long calls, freeing your hands for other tasks such as using a computer while you are on the phone and freedom of movement.The latest models have significantly improved sound quality compared to earlier handsets. There are a number of different VoIP headphones available with prices starting from around £20 per set.Other accessories available include conference call sound stations, and cases to protect cordless phones. There’s a wide range of suppliers of VoIP telephone hardware, so shopping around is always a good idea. Julia Watts Content Manager Specialising in the complex realms of telephone systems, business energy, vehicle tracking, asset tracking, and fuel cards, Julia writes content that cuts through the noise to help you find the right solutions and technologies for your business. Having spent five years working across the dynamic world of entrepreneurship, she loves helping exciting ventures – big or small – to flourish.