Written by Zara Chechi Updated on 21 June 2024 On this page The 10 Best Office Phones Cisco 7841: Best overall office phone Poly VVX 301/311: Best for call centers Cisco SPA514G: Best for small businesses Grandstream GXP 1630: Best value Poly SoundStation IP 5000: Best for conference calls Samsung SMT-I3105: Best for video calls RCA Unison U1100: Best for call quality Avaya 9641GS: Best for cubicle workers Alcatel-Lucent 8078s BT: Best premium product Snom 710 IPi: Best for home offices Buying Guide: Picking the Perfect Desk Phone How We Found the Best Office Phone Systems Next Steps FAQs Expand The ‘Big Switch Off’ in 2027 marks the end of traditional landlines in the UK. In other words, transitioning to a Voice over Internet Protocol (VoIP) telephone system is no longer just an option but a necessity. And to make the most of this new digital age, your business will need office phones equipped to handle calls over broadband and cellular connections.Our extensive research has decided the 10 best office phones for businesses, with the top desk phone overall being the Cisco 7841. But we also like the premium Alcatel-Lucent 8068s BT, the affordable Grandstream GXP 1630, and all the other options on this page for different reasons.Read our mini-reviews of each option below, covering VoIP compatibility, audio quality, number of phone lines and that all-important price point, amongst other important factors for your business.Our Top Three Phone Brands: ComparedBefore diving into our top 10, let’s compare our three favourite options we just mentioned: Swipe right to see more 0 out of 0 backward forward Top Choice Cisco 7841 Best Premium Phone Alcatel-Lucent 8068s BT Best Value Phone Grandstream GXP 1630 Price £62.98 (avg) Price £399.20 (avg) Price £67.90 (avg) Key Features Excellent voice qualityWireless capabilityWideband audio Key Features HD AudioColor screen12-month warranty Key Features Excellent sound qualityProgrammable soft keysCompact size Get free quotes Get free quotes Get free quotes The Best Desk Phones for Your Office1. Cisco IP 7841Best Overall Office Phone Ticking all the business phone boxes, the Cisco 7841 is an affordable and reliable companion for any desk, suitable for organisations with wide-ranging needs.It offers wideband audio (high-definition sound), high-resolution displays, a built-in speakerphone, and dedicated shortcut fixed keys, enabling you to seamlessly switch to speakerphone, the directory, messaging, and other functions.This phone is our top pick for offices because it provides quality and cost-effectiveness in equal measure, giving all the features your team should need for a very reasonable price. Key FeaturesVoIP compatible✓HD audio✓Color screen✘Number of phone lines4Warranty15 monthsAverage price per handset£62.98 2. Poly VVX 301/311Best for Call Centers Ready to start dialing right out the box, Poly’s (formerly Polycom) VVX 300 takes plug-and-play readiness to the next level. This means fast-growing call centers won’t need to waste time on complicated installations.This six-line handset is suitable for handling a low to moderate number of calls, offering some great features – including HD voice quality, POE (power over ethernet) capability, and an intuitive user interface. The importance of ease of use can’t be underestimated in a fast-paced call centre setting. However, the downside is that it doesn’t have a colour screen. If you’re looking for a phone that does, we’d recommend looking at Avaya. Key FeaturesVoIP compatible✓HD audio✓Color screen✘Number of phone lines6Warranty12-36 monthsAverage price per handset£123 3. Cisco SPA514GBest for Small Businesses Frill seekers be warned: this office phone ticks all the basic boxes but nothing more. That’s why we’ve earmarked it as the best phone for small businesses and startups on today’s list; because it provides the call management features small, office-based teams need, without overwhelming them with functions and features that they don’t.Of course, like all Cisco phones, this model does deliver excellent voice quality and connectivity, so your calls with customers should be crystal clear, and shouldn’t drop. After all, for a small business that’s working to gain traction, giving your customers a good impression over the phone is crucial. The downside is that its warranty life cycle is relatively short. As a small business, you probably want a system that has better insurance so you don’t have to invest more money later down the line in new phones. If you’re looking for a longer warranty, we’d recommend looking at Poly VVX. Key FeaturesVoIP compatible✓HD audio✓Color screen✘Number of phone lines4Warranty12 monthsAverage price per handset£156.62 Did You Know? 60% of companies say that phone systems and live agents are their most urgent investment priorities. Therefore, it’s worth hoping on the bandwagon and making an office phone investment of your own! 4. Grandstream GXP1630Best Value Office Phone The Grandstream GXP1630 is a compact and affordable option – in fact, it’s the cheapest office phone in our top 10. Its low price is reflected in the fact that it can only support three lines, which means it’s best suited for small to medium offices.That said, when it comes to technical features, the GXP1630 packs a solid punch for its price tag. It offers HD audio, a high-quality speakerphone, and a customizable screen, all for under £67.90 apiece on average. That’s very good value for money by our high standards. Key FeaturesVoIP compatible✓HD audio✓Color screen✘Number of phone lines3Warranty12 monthsAverage price per handset£67.90 5. Poly SoundStation IP 5000Best for Conference Calls Suitable for office meeting rooms with up to six participants, the SoundStation IP 5000 comes with the patented Poly Acoustic Clarity technology, which makes conference calls feel like face-to-face chats.On top of that, this office conference phone comes with a 360-degree microphone with voice detection – a function that automatically adjusts the microphone’s sensitivity to ensure anyone within the room can talk normally, and be heard from up to two meters away. This conference phone’s intelligent tech makes it a reliable choice for the majority of office meeting rooms. However, it’s not the best option if you have a tight budget. For a more affordable but still highly functional option we’d recommend looking at Poly VVX. Key FeaturesVoIP compatible✓HD audio✓Color screen✘Number of phone lines1Warranty12 monthsAverage price per handset£169.98 ▶ Read more: The Best Cloud Phone Systems for UK Businesses 6. Samsung SMT-I3105Best for Video Calls In true Samsung style, the SMT-I3105 is incredibly easy to use, while also offering a range of useful features like call logging, text messages, and video calling. With such a well-respected brand you’re also guaranteed smooth audio quality, ideal for video calls via Skype or Google Hangouts. With many businesses now moving towards hybrid working, the ability to reliably video chat with your team across multiple locations is an important thing to get in place.This phone also comes with 100 programmable soft keys (virtual buttons on your display), which let you quickly access things like speed dialling and call forwarding. Like other phones on this list, however, Samsung doesn’t have a colour screen, which make the phone feel slightly old-school. Therefore, if you’re looking for something with a more modern feel, we’d recommend going for Avaya. Key FeaturesVoIP compatible✓HD audio✓Color screen✘Number of phone lines4Warranty15 monthsAverage price per handset£35 7. RCA Unison U1100Best for Call Quality This intuitive and high-quality RCA office phone boasts unbelievable sound quality and a full-duplex speakerphone. This means the phone calls you take and make from your office – whether they’re going to customers, partners, investors, or anyone else – will always sound crystal clear, giving your business a professional image, and ensuring no information is lost.Better yet, the RCA Unison U1100 combines this high sound quality with convenience. It’s simple to set up, and you can connect up to ten cordless handsets to the RCA’s base station, giving your team excellent mobility. It’s also the second-cheapest office phone on this list. Key FeaturesVoIP compatible✓HD audio✓Color screen✘Number of phone lines4Warranty24 monthsAverage price per handset£37.99 Did You Know? Almost 70% of UK businesses still use landlines despite looming Big Switch Off. 8. Avaya 9641GSBest for Cubicle Workers Along with its high-quality sound, this phone comes with an easy-to-use touchscreen that provides quick access to your business’s web apps, calendars, and other productivity tools. This makes it really easy for office cubicle workers to use independently, accessing shared company information and documents from their own desk.With low power consumption, advanced functionality, and high bandwidth (meaning the phone system can support plenty of crystal-clear calls), this model aims to make the lives of cubicle workers much easier, meaning they can take a high volume of phone calls in one day. Key FeaturesVoIP compatible✓HD audio✓Color screen✓Number of phone lines5Warranty36 monthsAverage price per handset£165 Did You Know? 65% of people prefer to contact a business by phone call versus only 24% who prefer a web form. 9. Alcatel-Lucent 8068s BTBest Premium Product It may be a mouthful to say, but the Alcatel-Lucent 8068s BT is definitely not a handful to use. It certainly has a high price point at £399.20 apiece, but that’s justified by a variety of premium features that you just wouldn’t get with cheaper office phones.For example, this office phone has an ergonomic display touchscreen that you can adjust to suit your posture – which can really help with those long calls from your office chair. Meanwhile, the attached alphabetical keyboard comes with call-by-name functions, and the phone has a whopping 72 programmable soft keys to help you personalize your everyday calling experience.The downside is that Alcatel is on the pricier end of the spectrum. If you’re on the hunt for a more affordable, yet still functional, option, we’d recommend looking at Grandstream. Key FeaturesVoIP compatible✓HD audio✓Color screen✓Number of phone lines1Warranty12 monthsAverage price per handset£399.20 10. Snom D785Best for Home Office Use Snom’s D785 desk phone – of the company’s D7XX Series – should fit comfortably on any desk in your home, and comes complete with two integrated displays: a high-resolution colour screen, and a second screen for dynamic contact management. In combination, these interfaces make it super easy to independently manage applications, group calls, speed dialling, and more, with 24 self-labelling one-touch keys that can be customized to make your home office working day easier.These phones also boast HD audio quality, integrated bluetooth connectivity, and a USB port, as well as all the call features you’d expect. Key FeaturesVoIP compatible✓HD audio✓Color screen✓Number of phone lines6Warranty36 monthsAverage price per handset£140 – £200 ▶ Looking for software too?: Discover the best virtual phone number apps. Buying Guide: Picking the Perfect Desk PhoneBelow, we run through why the Big Switch Off means you probably need to upgrade your desk phone hardware, what VoIP integration with desk phones tends to look like and what sort of features the best desk phones offer.The Big Switch Off and Desk Phone CompatabilityThe phasing out of traditional PSTN (Public Switched Telephone Network) and ISDN (Integrated Services Digital Network) services, known as the ‘Big Switch Off’, is set to occur in January 2027.This transition means traditional landline technology will need to be replaced by hardware equipped for VoIP (Voice over Internet Protocol) technology.With the clock counting down towards that date, businesses need to begin assessing their current telephone needs, what capabilities they are set to desire in the future and what hardware can help facilitate those needs.Desk Phones and VoIPFuture-proofed desk phones that integrate seamlessly with VoIP tend to offer more advanced capabilities than traditional models. That includes high-definition audio quality, multi-line management, and integration with other business tools such as CRM software and email platforms.In many ways, managing and maintaining VoIP systems is easier than traditional landlines. It offers cloud-based options that can quickly update your calling infrastructure with new features or other enhancements without needing to replace your hardware entirely.Saying that we’ve found that certain VoIP providers work best with specific hardware. For instance, bOnline – one of our top-rated business VoIP providers for medium-sized organisations – works primarily with Yealink desk phones. You need to make sure that any hardware you purchase can be fully integrated into your VoIP system, and vice versa.Desk Phone FeaturesWith so many options out there, choosing the right phone system can feel overwhelming – so it helps to have a list of must-haves to look out for. When it comes to office phones, our advice is to make sure you get:An auto-attendant. This is an automated system that directs callers to the right member of staff or team, based on their reason for calling your company. Some also keep callers on hold and play personalized messages to keep them engaged until someone can pick up.Speed dial. The ability to contact particular extensions, partners, and clients with the touch of a button just makes things so much smoother!Conference calling. A phone system that lets multiple people jump on the same call opens up a whole new world of remote meetings and cross-team collaboration. (If long-distance meetings are a mainstay for your team, check out our list of the best conference phones!)Voicemail. If a customer can’t get hold of you for any reason, giving them the option to leave a message shows that you still want to hear from them. Plus, you’ll miss fewer leads! Some phone systems can even automatically forward a recording or transcript of each voicemail to your email inbox, so nothing slips through the cracks.A good LCD display screen. When your phone rings, being able to check caller ID at a glance before picking up means you’re better prepared for the call. Plus, handy system alerts and missed call/voicemail notifications are more difficult to miss on a quality screen. How We Found the Best Office Phone SystemsAt Expert Market, we spend time researching, testing, and evaluating providers we write reviews about. This typically consists of conducting market research to narrow down the software that's really worth digging into a little more and then assessing it against a range of research criteria.Informed by readers and businesses we speak to regularly as well as our own experiences using major VoIP platforms, we designed a research framework consisting of eight overarching assessment categories that we used to assess each VoIP provider.Scoring Criteria with Respective WeightingCall Management (25%): an analysis of a given platform's call management features, including call routing functionality and the presence of a virtual receptionist.Communication Channels (20%): assessment of the tools available within a VoIP platform for internal communication, including team messaging, video conferencing, and SMS capabilities.Training Features (20%): the ability of the VoIP service to support the training of employees, from call review features like call recording and call data reporting, to live call coaching features like call barge or call whisper tools.Pricing (10%): the pricing structure associated with the VoIP service, such as monthly subscription fees, call rates, setup fees, and any additional charges for add-on features or services.Software Integrations (10%): the VoIP service's ability to connect and integrate with external software systems, such as integration varying CRM, helpdesk, and external video conferencing platforms.Hardware Integrations (5%): the ability of a VoIP service to integrate with different phone brands.Customer Support (5%): the extent of assistance and resources provided by the VoIP service provider to customers including technical support, online resources, and access to customer support representatives.Security Options (5%): the measures and features implemented by the VoIP service to ensure the confidentiality, integrity, and protection of voice communications and data. Next StepsThere we have it – we’ve shown you ten of the best names in the office phonebook. The Cisco 7841 stands out as our favourite buy, offering superb value for money given its excellent quality wideband audio (high-definition sound), high-resolution display, and dedicated fixed keys for speeding up on-call tasks, like switching to speakerphone.Ultimately, you’ll want to pick the perfect hardware for your specific business needs. You’ll need your phone brand of choice to integrate with your VoIP system, too – each software has different requirements meaning certain picks are better than others. Before we hang up on this article, let’s talk more about how we can help you. Our quote-finding tool is quick, easy, and totally free to use, and we’ve partnered with the most trustworthy phone system suppliers.All you have to do is share some quick details about the unique needs of your business, and we’ll match your business with the phone supplier that best suits your requirements, and you’ll then receive bespoke, no-obligation quotes. FAQs What other phone system costs are there? Aside from the handset, you’ll also need to budget for the initial installation costs, the line rental (paying to use the internet to make calls via VoIP), and the expansion of your business – in other words, save some extra cash for when your phone requirements expand. Does VoIP work with all office phones? Generally speaking, yes it does, because VoIP is a feature of all digital phone systems. What’s more, you can also buy VoIP software to use on your computer, smartphone, or tablet, where you can set up extra features like call forwarding, and access your call data.However, it’s important to check if your specific brand of desk phone is compatible with the specific VoIP system you plan or already use. Our research of the best VoIPs in the UK has discovered that not all providers work seamlessly with all phone brands. Do I need a hands-free phone? Mobile working has become an essential part of modern office life, enabling you to easily jot down notes, passionately gesticulate, or sell stock on the stroll. Thankfully, nearly all digital phones today allow for hands-free or voice activation. This doesn't have to be the end – why not compare free quotes from trusted phone system suppliers? Sure - i'd like a quote Written by: Zara Chechi Business Services Expert Zara is a Payments Expert, specialising in writing about Point of Sale systems. With a Law Degree from City University of London, she has used her legally-honed research and analytical skills to develop expertise in the Business Services world. Featured in FinTech Magazine, she quickly became an expert in payroll, POS systems, and merchant accounts.