3CX's feature set to price value is all but unmatched in the industry. Emerging AI tools combined with an easy-to-deploy, use, and maintain PBX. 3CX is a no-brainer for technical directors, service providers, and telecommunications resellers alike, simply because it just works and it works well. Review collected by and hosted on G2.com.

There are a few minor, niche reporting tools I’d personally like to see, mainly for my own and my partners’ specific use cases. That said, my “complaints” are really just edge-case requests, which honestly speaks well of 3CX overall. Review collected by and hosted on G2.com.

Easy to set up and provision, provided that you complete the training certifications. It works on a bunch of different phones, such as Yealink and Fanvil, etc. The best part is being able to keep one phone number for your business while having multiple extensions under one SIP Trunk, with the flexibility to use the desktop app, the mobile app, or a hard phone depending on preference. The SMS-style messaging is also very good for communication within your business network. Overall, I find the platform fairly straightforward, and it can help companies save money while enhancing productivity. Review collected by and hosted on G2.com.

If you don’t have your hard phone user provisioned, it will show you as “Not Registered,” which can make it look like you don’t have the program. Once you have a proper user profile provisioned on a hard phone (depending on how your system is configured), you should be good to go. Also, I found the certification test to be tricky—you really have to pay close attention to how they present TRUE/FALSE and watch the wording carefully. Review collected by and hosted on G2.com.

3CX is a solid phone system for organizations that want flexibility and control without the cost of traditional telecom solutions.

It offers strong call handling features, softphone options, and integrations that work well for distributed teams. Setup is generally straightforward for users with basic technical knowledge, and once configured, the system is reliable for day-to-day operations. The web client and mobile apps make it easy for staff to take calls from anywhere. Review collected by and hosted on G2.com.

Where 3CX can fall short is usability for non-technical administrators. Some configuration and troubleshooting tasks are not intuitive and may require outside support or documentation. Reporting is functional but limited, often requiring exports to get the insights needed for management review.

Overall, 3CX is a good fit for organizations that value customization and cost control and are comfortable managing a more hands-on system. Review collected by and hosted on G2.com.

I use 3CX for office VoIP PBX and internal communications, and I really appreciate that it's compatible with multiple VoIP/SIP providers and iPhone manufacturers. The software client has a good UI and is easy to use and administer, which makes it very user-friendly. It allows us to route calls efficiently, both within the office and with field staff, without the need for costly IP phone units. Its ease of setup means there's a low learning curve, so getting new users and admins up to speed is quick. Review collected by and hosted on G2.com.

We do prefer the old UI to the new one. Some of the features in the old UI were better implemented, like backups, provider and IP phone templates, and on hold and holiday messaging. It would be an improvement from the administrator point of view to have the old UI methods brought back rather than the new script download and deployment methods currently favored. Review collected by and hosted on G2.com.

3CX is the best phone system I have used in a long time. The up to date performance and intelligence is state of the art for 2026. Its easy to use and the support we are given if any issues arise is beyond helpful. This system has helped our agency to run more smoothly and never miss a clients call. The system integrates with our management system and the pricing is extremely reasonable. Review collected by and hosted on G2.com.

There is nothing I can say poorly of 3CX Review collected by and hosted on G2.com.

I like that 3CX is easy to use, intuitive, not too expensive, and scalable. The tool opens and works on its own with basic configurations. I also value the easy transition from analog to digital lines and the virtualization and automation of the call system, which provides great value to companies due to its low cost and ease of use. Review collected by and hosted on G2.com.

Calls outside the office through the VPN are a problem. Additionally, the application should have the same interaction on all devices and only require an internet connection, username, and password to function, without specific configurations. Also, the initial setup was a bit cumbersome. Review collected by and hosted on G2.com.

I still really appreciate how easy it is to manage and transfer calls internally between team members. In addition, the system has proven to be very stable and reliable, even as our usage has grown.

Over time, we’ve also relied more on call recording, which has been very useful for quality checks, training, and resolving customer questions. Review collected by and hosted on G2.com.

There haven’t really been any major pain points for us and overall, our experience with 3CX has remained very positive. The mobile app, in particular, has worked well and allows our team to handle calls even while on the go. Review collected by and hosted on G2.com.

3CX is best for its cost savings flexibility and ease of use. It also delivers unified communications along with strong CRM integrations, making it a powerful, affordable, and modern alternative to traditional phone systems. Review collected by and hosted on G2.com.

3CX often focus on frequent, disruptive updates, a perceived shift away from user-friendly perpetual licenses toward recurring revenue, unreliable performance in the mobile app, and support that is either poor or available only on a commercial basis. Review collected by and hosted on G2.com.

The fact you can self-host on a simple server, while retaining good performance, is a great feature. Easy to use, rich in features and fair pricing. Review collected by and hosted on G2.com.

There’s a noticeable lack of native AI features, and it feels like competitors are catching up quickly on that front. Integrations are also fairly limited, largely because there isn’t an open API. Review collected by and hosted on G2.com.

I appreciate 3CX for transforming our old outdated phone system into a digital cloud-ready communication platform. It enables us to make and receive calls seamlessly from any location and device. I really like its unified controls for voice, chat, video, and messaging on a single pane of glass. Additionally, the initial setup was very easy as 3CX allowed us to retain our phone numbers and extensions. I also enjoy the integration with HubSpot for voice omnichannel. Review collected by and hosted on G2.com.

Lack of nice features such as voice transcriptions and AI integrations on lower subscription tiers Review collected by and hosted on G2.com.