Sales Director
With the cost advantages, alongside greater flexibility and control, there’s good reason why some businesses are turning their backs on fully managed cloud phone systems and opting for 3CX instead. In this article, we’ll look at the advantages of investing in 3CX over one of the big cloud VoIP solutions.
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For the majority of businesses operating today, a robust phone system is integral to their success. It's how they make sales, resolve queries and build relationships with their customers.
With the advent of VoIP (Voice over Internet Protocol), they have the freedom to operate a successful telephony operation, wherever an internet connection exists.
Most VoIP systems are fully managed by a provider – but with more businesses wanting autonomy over their phone systems, 3CX's popularity has grown. As one of the most talked-about names in business telephony, 3CX has become a genuine 3CX VoIP solution for organisations that want the flexibility of self-hosting without sacrificing the features of a modern phone system.
Their software allows users a service stacked with features - including the choice to self-host their phone systems; whether in a private cloud or within their on-site network. In this guide we'll cover exactly what 3CX is, how the 3CX phone system works, the genuine benefits of 3CX for UK businesses, a candid look at 3CX pros and cons, and how it stacks up against rivals like FreePBX, Asterisk, RingCentral and more.
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VoIP allows users to make phone or video calls using a broadband connection. It acts as a modern alternative to PSTN landline connections, which often tethered business phone systems to the location where the connection was housed.
It also allows calls to be made and received from any VoIP enabled devices, whether that's a SIP desk phone, a computer or a mobile phone. This is a big part of what sets modern voip 3CX deployments apart from the phone systems many UK businesses grew up using - the same call can follow you from your desk phone to your laptop to your mobile, without anyone on the other end noticing the difference.
VoIP services, though typically hosted by a provider, can be self-hosted when incorporating software like 3CX. This method allows users to manage their phone system in-house or host it in the cloud, rather than the - at times limiting option - of being managed elsewhere.
This is where the debate around 3CX hosted vs self-managed deployments really starts. Some businesses are happy to let a specialist host and maintain everything for them, while others - particularly those with an in-house IT team - prefer the control that comes with running 3CX self-hosted on their own infrastructure. We'll dig into that comparison in more detail shortly.
VoIP acts as a digital replacement for the traditional landline. Instead of sound travelling down a copper wire, VoIP turns sound into raw data packets, which can be transmitted anywhere using a broadband connection.
Where VoIP allows you to make phone calls using the internet, 3CX is a phone software system which uses VoIP to do so. Users can make and receive multiple calls at any one time, while also being able to route calls with ease.
These systems are often used in call centre environments, allowing businesses to talk to multiple customers at once. Popular with companies on a budget, 3CX software provides useful features like video calling and live chat, while remaining a low-cost model to operate.
So, what is 3CX used for in practice? In short - it replaces your traditional phone system, PBX hardware and often your separate live chat and video conferencing tools, rolling them into one unified 3CX phone system that runs on VoIP infrastructure. Whether you're asking "what is 3CX?" for the first time or trying to work out what does 3CX do differently to your current provider, the answer is the same: it's a single platform for calls, chat and video that you can host yourself or have hosted for you.
3CX was founded in Nicosia and remains headquartered in 3CX Cyprus, from where it has grown into a genuinely global voip 3cx provider. It's used just as widely by businesses in 3CX Australia and mainland Europe as it is here in the UK, and international searchers often look for it under local terms such as 3CX Telefonanlage (German for "phone system") or 3CX Preise (pricing) - a reflection of just how far its reach now extends.
This is one of the most common questions we hear, and it's a fair one. VoIP is the underlying technology - it's the method of sending voice as data over the internet rather than down a copper phone line. 3CX, on the other hand, is a piece of software that uses VoIP technology to deliver a full phone system.
Put simply: all 3CX systems are VoIP, but not all VoIP is 3CX. Is 3CX voip? Yes, entirely - but it's VoIP with a management layer, a set of call-handling features, and the option to host it yourself, sat on top. Think of VoIP as the electricity, and 3CX as the appliance that uses it to actually get something useful done.
3CX uses SIP signalling and SIP trunks to connect your central phone system server (PBX) to the internet. To use 3CX with your current system, you'll need to purchase your SIP trunk(s) from one of the recommended 3CX providers.
Once your server is connected to a SIP trunk, any devices linked to it can be used as part of your phone system. You don't have to be in the office to use it either – anywhere with a broadband connection will do.
For UK businesses specifically, 3CX's SIP trunk compatibility is one of its biggest draws. Rather than locking you into a single provider's proprietary hardware or contract terms, 3CX works with SIP trunks from a wide range of UK carriers, giving businesses freedom to shop around for the best rates and call quality in their area.
Yes - and this is a genuinely useful feature for UK businesses that want resilience built into their phone system. 3CX allows you to configure multiple SIP trunks from different providers on the same system, so if one trunk experiences an outage, calls can automatically fail over to another. For businesses with multiple offices or those who simply don't want to put all their eggs in one basket, this multi-trunk capability is a real point in 3CX's favour.
Security is understandably front of mind for UK businesses considering SIP trunking. 3CX supports encrypted SIP trunking (using TLS and SRTP) to keep call signalling and audio protected in transit, alongside built-in protections against common threats like toll fraud and brute-force attacks. Provided your SIP trunk provider also supports encryption and your firewall is configured correctly, SIP trunking through 3CX can be just as secure - if not more so - than a traditional analogue line, which offers no encryption at all.
Many rival PBX systems support SIP trunking too, but the ease of set-up varies considerably. Open-source platforms like Asterisk or FreePBX often require more manual configuration to get a SIP trunk talking correctly to your PBX, while some fully managed VoIP providers restrict you to their own in-house trunks entirely. 3CX sits comfortably in the middle - offering a guided, wizard-based configuration process alongside genuine freedom of choice over which UK sip trunk providers you use.
The biggest advantage is flexibility without complexity. Where some PBX systems tie you to specific hardware or a single carrier, 3CX's SIP trunk architecture means UK businesses can negotiate their own call rates, switch providers if service drops, and scale the number of concurrent calls up or down simply by adjusting trunk channels - all without replacing the underlying phone system.
'The Big Switch Off' refers to BT Openreach's discontinuing and eventual shut down of traditional PSTN and ISDN landlines. As of September 2023, UK providers will no longer offer landlines to consumers or businesses, with a full shutdown of these lines coming in early 2027.
VoIP is already playing a huge part in the transition, with telecom providers offering solutions like BT's Digital Voice as a consumer option. These services offer the benefits of a landline, without tethering users to an analogue phone line.
For businesses, it's reassuring to know that 3CX phone systems have been developed with the switch off in mind. Their cloud based or on-site services are affordable and simple to install, offering businesses a smooth transition from analogue to a fully digital option. Among the many benefits of 3CX during this transition is the fact that businesses aren't forced to overhaul their entire telephony estate overnight - existing SIP-compatible handsets can often be reused, keeping switch-off costs down.
One of the first decisions any business makes when adopting 3CX is whether to go with 3CX hosted voip or self-managed. Both use exactly the same 3CX software and feature set - the difference is purely in who manages the infrastructure underneath it.
With a hosted deployment, your 3CX system lives on servers managed by a specialist 3CX hosting provider (this could be 3CX's own hosting, or a third-party 3CX voip provider like T2K). The provider takes care of server maintenance, updates, uptime monitoring and much of the underlying security, meaning your business gets a fully working 3CX cloud phone system without needing in-house server expertise.
Choosing to run 3CX self-hosted means installing the software on your own server - either on-premises or on cloud infrastructure you control, such as AWS or Google Cloud. This suits businesses with existing IT resource who want maximum control over configuration, data residency and integration with other in-house systems.
If you'd rather hand off the technical maintenance and simply use the phone system, 3CX hosted vs self-managed usually tips in favour of hosting - particularly for smaller teams without a dedicated IT department. If you have the in-house skills and want complete control, self-hosting 3CX gives you that freedom, with no compromise on features either way.
For some businesses, there are advantages to having a fully managed, cloud-based VoIP solution. It frees up their IT resources for other things, and delivers robust security managed by the provider.
Others may prefer more control over their phone systems, while keeping cost down. For these businesses - opting for 3CX is beneficial for a number of reasons, and it's why so many 3CX reviews from UK businesses cite it as a genuine alternative to the bigger, more expensive fully managed names.
Remote working has allowed businesses to thrive in difficult times. It has also encouraged companies to seek greater flexibility from their telephony operation.
Unlike fully managed VoIP products such as Ringcentral or Gamma Horizon, 3CX software can be installed anywhere - whether that's on-site, in a private cloud or in 3CX's hosted environment.
It allows companies to be mindful of employee needs, offering office based, remote or hybrid working where required. Better still, 3CX connected devices can be used in transit, making working or taking calls on the go simple.
3CX is also compatible with most SIP phones, so there's no need for additional hardware costs that fully managed services may require.
A question we're asked often is whether RingCentral, 3CX and similar VoIP providers support location-based call routing or time-based forwarding features - and the good news is that 3CX handles both very well. Calls can be automatically routed depending on the time of day, day of the week, or even public holidays, ensuring customers reach the right team whether that's an office in the UK or a remote agent working from home. Location-based routing means calls can be directed to whichever office, branch or individual is best placed to answer, based on where the caller is dialling from or which number they used. For businesses juggling multiple sites or staff working across different time zones, this kind of call routing removes a huge amount of manual admin.
If you're wondering about the safety of your network with 3CX, here's the good news. 3CX utilises some of the most advanced security technologies available, which is regularly updated to ensure your data isn't compromised.
When compared to other leading providers of fully managed VoIP services, it largely depends on your business needs.
For example, healthcare and financial organisations are suited to both fully managed and CX systems because of the encryption and detailed audit trails available. This level of protection is beneficial to businesses who regularly handle confidential data.
However, for technology companies looking for greater control over their security protocols or those with multiple locations (we'll discuss this later), 3CX accommodates both comfortably.
3CX performs advanced vulnerability checks and penetration tests on each release of their systems. This transparent approach to testing leaves nothing to chance, demonstrating their dedication to safeguarding customers.
In doing this, they work with leading names in network security. These include threat intelligence experts Reversing Labs and Mandiant, while securing their own network with leading cloud-protection from Crowdstrike.
For businesses with more than one location, 3CX software can be connected across multiple sites. This is made possible by installing a Sessions Border Controller (SBC) within the network of each site.
The SBC ensures that any VoIP data entering or leaving a location's network is secure - reassuring businesses that it won't be lost or compromised.
As of 2023, 3CX have also announced updated security measures intended to prevent malicious threats to their software and network.
This includes reinforcing the layers of network security, addressing vulnerabilities with their security features and putting together an expert network and security taskforce.
With seven in ten UK businesses looking to cut costs, small-to-mid sized companies simply cannot afford expensive telephony systems. For businesses like these, 3CX offers an affordable, yet dynamic option.
3CX's affordability comes from their own running costs. Their use of SIP trunks, mean they don't pay extra for additional systems like other fully managed services. It also means they are able to charge users much less per extension, allowing them to keep their prices down.
An extension is a 4-digit phone number that can be assigned to a specific target - whether that's an individual, a team or an entire department. They allow callers to reach a specific destination directly, rather than going through a series of options or departments.
It's common for fully managed VoIP providers to offer packages with a monthly or annual cost per extension. This often leaves smaller to mid-level companies priced out.
Opting for 3CX means businesses only pay for a software licence and however many SIP trunks are needed. Users wishing to use a cloud-based model may also be charged an affordable hosting fee.
3CX's licensing tiers are worth understanding before you commit. The free tier suits very small teams or businesses wanting to trial the system, offering core calling, video conferencing and live chat with a capped number of simultaneous calls. Stepping up from 3CX Basic to PRO (or the Enterprise tier above that) unlocks features like call recording, multi-site support, hotel-style call queue management and deeper CRM integration. For most growing UK businesses, comparing 3CX Basic vs PRO comes down to whether you need advanced call handling and reporting - if you do, the jump in price is generally modest compared with fully managed alternatives.
Some fully managed VoIP providers use proprietary technology which requires a hefty licence fee and specialist knowledge. This cost is then added to their product's, often causing a substantial price increase.
3CX cuts costs by using SIP trunks as the backbone of its operation. SIP trunks are what are known as an 'open standard'.
This means that unlike proprietary technology (think Apple or Microsoft products), they can be used and adapted by the public - costing little or nothing to licence. This is also reflected in their pricing, allowing them to charge much less.
Like most fully managed VoIP services, 3CX can be integrated with the systems, apps and CRM's you currently use.
3CX's API (Application Programming Interface) allows seamless connection, acting as a bridge for different systems to communicate and share information.
The API also offers a level of customisation that most other providers can't. This allows businesses more control over how 3CX works alongside their current programs.
CRMs (Customer Relationship Management), ERPs (Enterprise Resource Planner) and communication tools are often key to running a successful business. This makes integrating them with your phone system essential.
3CX systems are designed to accommodate a larger selection of CRM's than other providers, allowing deep integration with popular systems like Salesforce and Hubspot. This makes tasks such as logging calls and syncing contacts much easier.
Their software also supports a range of communication tools, including licensed models like Microsoft Teams.
3CX's biggest strength when it comes to integration is the breadth and depth of what it can integrate with.
Its API's compatibility with a host of CRMs, ERPs and communication tools, makes it more attractive to companies already using these tools - saving them money shopping for compatible alternatives.
When investing in technology, it's important to understand its capability to grow alongside your business.
3CX offers a flexible, easily scalable software that makes it easy for companies to adapt it to their current operation model.
The beauty of 3CX is that you can choose how it's deployed:
As well as its integration with essential CRMS, ERP's and comms tools, 3CX's app (available for IOS, Android, Windows and PWA Web) allows you to add new users easily.
All you need is an internet connection, and you'll have access to all of 3CX's features, including video conferencing, online chat and mobile apps. This makes working remotely or on the go easier than ever.
You'll also have instant access to technical support, meaning employees don't need to wait in queues to have their issues resolved.
3CX offers a simple desktop set up, quick deployment and user-friendly features. This relaxed yet guided approach allows for a stress-free user journey.
Installation is simple. Once you've chosen the 3CX licence that suits you, all you need is the internet and your SIP trunk connection. You'll then be walked through a simple installation in your web browser.
Once installed your software will either be stored as part of your on-site network, or in a private cloud (both Google and Amazon offer these services.)
Anytime you need to make changes to your system, 3CX's handy web-based interface allows you to add extensions and make changes if needed.
For accessibility, a clean, easy to follow user interface makes all the difference. After all, if you're trying to set up something that involves multiple phones or works across more than one location - it needs to be straightforward.
With their phone apps available for IOS, Android and Windows, 3CX makes it easy for remote workers to access a full range of features, without hiding key settings or cluttering the interface.
Their web client echoes this simplicity, whether you need to find a contact, host a video conference or locate call information. Both are intuitive, with a clean design and minimal distracting or unneeded add-ons.
That's right. 3CX offers the opportunity for businesses to use their software free, forever! This means smaller businesses or companies looking to test drive the software can do so, with no time constraints, no cost and free hosting.
3CX is a UC (unified communication software) that offers everything a modern business needs for a successful telephony operation.
Where other fully managed options require you to purchase equipment, proprietary systems or additional extensions, 3CX offers it all at a fair price.
3CX allows users to respond to customers faster than ever with their free live chat feature.
For websites, 3CX's WordPress plug-in integrates live chat onto any WordPress website, with the option of voice or video calls if a customer requires it. If you've been searching for a genuinely free wordpress live chat plugin that ties directly into your phone system rather than sitting as a separate tool, this is exactly the sort of feature that makes 3CX stand out.
This feature is also compatible with WhatsApp Business, Facebook Messenger and text message too. It means agents can make and receive calls from anywhere with broadband, cutting down on missed or abandoned calls.
3CX's unique features allow for deeper collaboration. As well as monitoring call queues, managers can view login history and use call and chat reports to ensure targets are met.
Another standout feature is 'Listen and Whisper. This allows employees or managers to guide new staff through their calls, with a 'Barge in' option if they need to take over the call. Options like this help build customer trust, and ensure that less experienced staff are supported.
For call centres wanting to make sure customers get what they need, as soon as possible, skill-based routing is a powerful feature. It all but guarantees that your callers are speaking to someone with the expertise they require.
It works by putting your call agents into groups with relevant skills. If a call agent with the relevant skill isn't available, callers are then routed to an agent with similar expertise.
Choosing to integrate your 3CX system with a CRM offers plenty of benefits. One of these is the 'Know your caller' feature which brings up customer details as soon as they call. As well as allowing call agents to be prepared, it lets businesses nurture customer relationships and develop trust.
No phone system is perfect for every business, so here's a balanced look at where 3CX genuinely excels and where it might not be the right fit.
Knowing which option is the most suitable comes down to the needs of your business.
Larger businesses that prefer to keep their eyes on the bigger picture, may be better suited to a fully managed VoIP solution. These services cover set up, updates and security, allowing them to focus their attention on key areas and retain IT resources.
For small to mid-sized businesses however, 3CX is a perfect fit. It allows users to be hands-on with their phone system, depending on their choice of cloud-based or onsite hosting.
It's also a budget friendly choice that includes the security, flexibility and functionality of a fully managed service, without the added cost of extensions or proprietary apps.
FreePBX is another hugely popular name in the world of self-hosted telephony, and the 3CX vs FreePBX debate comes up often among UK businesses comparing their options. FreePBX is built on Asterisk and is entirely open source, meaning the software itself is free and endlessly customisable - but that flexibility comes at the cost of a steeper learning curve, particularly for anyone without Linux or telephony experience.
3CX, by contrast, offers a more polished, guided experience straight out of the box. Its web-based management console, native apps and built-in video conferencing and live chat mean far less manual configuration is needed to get a fully working system up and running. When comparing FreePBX vs 3CX, the honest answer is that FreePBX suits businesses with strong in-house technical resource who want total control over every line of configuration, while 3CX suits businesses who want most of that same flexibility without needing a dedicated telephony engineer on staff.
Asterisk is the open-source framework that underpins many self-hosted PBX systems, including FreePBX itself. Comparing Asterisk vs 3CX is really a comparison between a toolkit and a finished product. Asterisk gives developers raw building blocks to create a completely bespoke phone system, but it requires genuine coding and telephony expertise to configure queues, routing and integrations from scratch.
3CX, meanwhile, is built on similar underlying principles but wraps everything in a management interface that non-specialists can use confidently. For UK businesses asking how 3CX compares to other self-hosted PBX systems, the general consensus is that 3CX delivers around 90% of Asterisk's flexibility with a fraction of the set-up time and ongoing maintenance burden.
Beyond FreePBX and Asterisk, there's a whole field of VoIP and PBX providers that 3CX regularly gets compared against. Here's a quick, honest rundown of how it stacks up.
RingCentral is a fully managed cloud VoIP provider, meaning there's no self-hosting option at all - you're paying a per-user fee every month in exchange for RingCentral handling everything behind the scenes. For businesses that want zero technical involvement, that's appealing. But for businesses that want control over their infrastructure, lower long-term costs, or the option to self-host, 3CX vs RingCentral tends to favour 3CX, particularly once you factor in per-extension pricing over several years.
Google Voice is a lightweight, consumer-leaning VoIP service that's fine for solo users or very small teams needing basic calling. It simply isn't built for the call queues, skill-based routing, CRM integration or multi-site support that growing businesses need. 3CX vs Google Voice isn't really a fair fight - Google Voice is a phone number with some VoIP smarts, while 3CX is a full unified communications platform.
Zoho Voice works well if you're already deep into the Zoho ecosystem, offering tidy integration with Zoho CRM and other Zoho apps. Outside of that ecosystem, though, its feature set is noticeably more limited than 3CX's. If your business isn't tied to Zoho's other products, 3CX vs Zoho Voice generally comes down to 3CX offering broader CRM compatibility and deployment flexibility.
Weave is popular in healthcare and dental practices thanks to its patient communication tools, but it's a narrower, industry-specific product. Weave vs 3CX really depends on your sector - if you need patient reminders and reviews baked in, Weave has its place, but for general business telephony with broader integration options, 3CX offers considerably more scope.
Starface is a German-engineered PBX system with a solid reputation in Europe, offering both on-premises and hosted options much like 3CX does. Starface vs 3CX is a closer contest than most - both are well-built, both support SIP trunking, and both offer decent apps. Where 3CX tends to edge ahead is in its broader third-party CRM integration library and its free-forever licensing tier, which Starface doesn't match.
Wildix positions itself as a security-first, cloud-native UC platform, and it's a strong option for businesses that want everything locked down and fully managed with minimal configuration. Wildix vs 3CX often comes down to control versus convenience: Wildix handles more of the security and infrastructure decisions for you, whereas 3CX hands you the keys - which is either a benefit or a burden depending on your in-house expertise.
Switchvox (by Sangoma) is another on-premises and cloud-capable PBX with a longstanding reputation, particularly in the US market. 3CX vs Switchvox often comes down to ecosystem and pricing - 3CX's open SIP trunk approach and free tier tend to work out considerably cheaper for UK businesses, especially smaller teams.
VitalPBX is another Asterisk-based platform aimed at businesses wanting an affordable, self-hosted option. VitalPBX vs 3CX is a genuinely close comparison for technically-minded teams, though 3CX's more mature app ecosystem and built-in live chat and video conferencing usually give it the edge for day-to-day usability.
Yeastar is well known for its hardware PBX appliances as well as its cloud PBX software, making it a solid choice for businesses that prefer a physical box on-site. Yeastar vs 3CX largely comes down to whether you want dedicated hardware (Yeastar's traditional strength) or a software-first approach that can run on virtually any infrastructure (3CX's approach).
Grandstream is primarily known for its handsets and PBX hardware rather than being a direct software competitor, though its UCM series does compete in the same space. 3CX vs Grandstream typically comes down to hardware versus software flexibility - many businesses actually use Grandstream handsets alongside a 3CX software PBX, since the two are broadly compatible rather than mutually exclusive.
Microsoft Teams Phone bolts calling capability onto the Teams app many UK offices already use daily. It's convenient if your business lives inside Microsoft 365, but it can work out expensive at scale and offers less flexibility around SIP trunk choice. 3CX vs Teams Phone often comes down to cost and control - and helpfully, 3CX also integrates with Teams directly, so it's not always an either/or decision.
Aircall is a popular cloud calling platform aimed squarely at sales and support teams, with strong integrations into helpdesk and CRM software. It's fully managed, so there's no self-hosting option. 3CX vs Aircall usually comes down to whether you want that managed simplicity (Aircall) or the flexibility and lower long-term cost of a self-hosted or hosted 3CX voip solution.
This comparison catches a few people out, because Zoiper isn't actually a PBX system - it's a softphone app that can connect to any SIP-compatible PBX, including 3CX itself. Zoiper vs 3CX is a bit of an apples-to-oranges comparison; many businesses actually use Zoiper as a softphone client on top of a 3CX system, rather than choosing one over the other.
One question we hear constantly from UK businesses is which 3CX hosting provider is most reliable for business calls, and it's a genuinely important one to get right. Your phone system is only as good as the infrastructure it sits on, so hosting reliability directly affects call quality, uptime and customer experience.
How do businesses rate 3CX for call reliability when running it through a third-party hosting provider? In our experience, the answer largely comes down to three things: the quality of the hosting provider's network, how well the server is specced for your call volume, and whether the provider offers genuine UK-based support rather than an offshore helpdesk with limited out-of-hours cover.
3CX's own hosting is a solid, no-frills option, particularly for smaller deployments. But many UK businesses choose to work with a specialist 3CX hosting provider like T2K instead, precisely because local support, proactive monitoring and a properly configured, business-grade internet connection make a tangible difference to day-to-day reliability. A poorly specced or poorly located server can introduce latency and jitter regardless of how good the 3CX software itself is - so the hosting provider you choose genuinely matters as much as the software choice.
Is 3CX a solid phone system for small remote teams, or does it get complicated to manage? It's a fair question, and the honest answer is: it depends on how it's deployed.
For small remote teams choosing a hosted deployment, 3CX is genuinely simple to manage day-to-day. Adding a new remote starter takes minutes - you create an extension, they download the 3CX app on their phone or laptop, log in, and they're taking calls as though they're sat in a UK office, wherever they actually are in the world.
Where things can get more complicated is with a fully self-hosted deployment, particularly if nobody on the team has networking or server experience. Configuring firewalls, port forwarding and SBCs correctly takes some know-how, and getting it wrong can affect call quality or leave the system exposed. Our advice for small remote teams without dedicated IT support is usually to opt for a hosted or partially managed deployment through a trusted 3CX hosting provider, so you get the flexibility of 3CX without the headache of managing server infrastructure yourselves.
The 3CX app is one of the platform's genuine standout features, and it's worth explaining properly given how often people ask what is 3CX app used for.
In short, the 3CX app turns any phone, tablet or computer into a fully working extension of your office phone system. Available on iOS, Android, Windows and as a browser-based PWA, the app gives users access to calling, video conferencing, live chat and presence status (so colleagues can see who's available, on a call, or away) from wherever they happen to be.
For businesses with remote or hybrid staff, the 3CX app effectively removes the need for a physical desk phone altogether, though desk handsets remain fully supported for those who prefer them. It's this dual approach - traditional hardware alongside a genuinely capable software app - that makes the 3CX phone system app such a flexible fit for modern working patterns.
If you'd rather stick with physical handsets, you'll be pleased to know 3CX works with a wide range of 3CX compatible phones from manufacturers including Yealink, Fanvil, Snom and Grandstream. Most models offer auto-provisioning, meaning your handset can be set up and connected to your 3CX extension within minutes rather than requiring manual configuration.
With BT phasing out ISDN and PSTN lines ahead of the 2027 switch off, plenty of UK businesses are actively researching uk cloud phone system providers alternative to bt one phone with uk based support. It's a crowded market, so here's a brief overview of where 3CX sits alongside some of the other names you'll come across.
Providers like 8x8 UK, Vonage UK, Gamma Horizon and Microsoft Teams Direct Routing all offer fully managed cloud telephony, each with their own strengths - 8x8 and Vonage lean towards straightforward, all-inclusive packages, Gamma Horizon is popular with UK resellers and channel partners, and Teams Direct Routing suits businesses already committed to the Microsoft ecosystem. These uk hosted voip business phone providers alternatives to bt one phone, including pricing and support services like the voip shop, gamma horizon, sip trunk providers uk, are all worth comparing on price, contract length and the quality of their UK-based support.
Where 3CX differs from most of this list is choice: rather than being locked into one company's infrastructure and pricing, 3CX lets you choose your own SIP trunk provider, your own hosting arrangement (or none at all, if self-hosting), and scale your licence up or down as your business changes. For businesses that value that flexibility over an entirely hands-off, fully managed package, 3CX is well worth putting on the shortlist alongside the more traditional names.
For businesses searching specifically for 3CX Sheffield support, T2K provides installation, hosting and ongoing maintenance for 3CX systems across South Yorkshire and further afield. Whether you're after a fully hosted 3CX voip solution, help migrating from an existing PBX, or ongoing support for a self-hosted deployment, having a local, UK-based team on hand makes troubleshooting and onboarding considerably smoother than relying on an overseas helpdesk.
3CX is used as a complete business phone system, combining calling, video conferencing, live chat and call routing into a single platform that can be self-hosted, hosted by a provider, or run through 3CX's own cloud infrastructure.
For small to mid-sized businesses wanting flexibility, control over costs and freedom to choose their own SIP trunk provider, 3CX is a genuinely strong option. Larger enterprises wanting a completely hands-off, fully managed solution may prefer a different route, but for the majority of UK SMEs, 3CX punches well above its price point.
3CX offers call queues, skill-based routing, location and time-based call forwarding, auto-attendants, call recording (on paid tiers), voicemail-to-email, live chat, video conferencing and CRM-driven caller ID - all the core features a business would need to fully retire a traditional phone system.
Against enterprise-grade systems, 3CX holds up well on features and integration, though very large organisations with complex compliance needs may still prefer a fully managed enterprise provider with dedicated account management. For most mid-sized and growing UK enterprises, though, 3CX's Enterprise licence tier covers the vast majority of what's needed.
Compared with most fully managed alternatives, 3CX typically works out more cost-effective over time, offers greater deployment flexibility (self-hosted, hosted or cloud), and doesn't lock you into proprietary hardware - though it does ask a little more of your IT resource if you choose the self-hosted route.
If you're looking for user-friendly telephony software packed with useful features, contact T2K today. Our experts are happy to help you discover the benefits of 3CX for your business.
With over 25 years’ experience at T2k, Lee began his career as a telecoms engineer before progressing to Sales Director. He leverages his foundational technical knowledge to provide businesses with impartial, expert advice on modern communications, specialising in VoIP and cloud telephony. As a primary author for T2k, Lee is dedicated to demystifying complex technology for businesses of all sizes.
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