3CX Reviews & Product Details

3CX has been installed for about 5 years at my company - it was easy to install, it was easy to set up, and it has been easy to customise for our requirements. I've never once been unable to solve a problem using 3CX. We have specific requirements for out of hours contact, and have implemented a rota system for out-of-hours support using just 3CX and a bit of logic.

Despite the system being 5 years old, it has been regularly upgraded to the latest release - a process that is easy and dependable. Review collected by and hosted on G2.com.

3CX can sometimes be a bit picky about how certain SIP devices connect, but their support channels and the 3CX community have been very helpful in remediating these issues. Review collected by and hosted on G2.com.

3CX has completely transformed the way we handle communication across our Multi Academy Trust. We're running our own self-hosted version using a cloud based datacentre host, linking 20 school locations—three secondaries and 17 primaries—all under one centralised system.

Every staff member has their own extension, which has been a game-changer for staying connected, whether it's during field trips or on days when adverse weather keeps people working from home.

It really came into its own during lockdown. While many were scrambling to patch together remote communication, we were able to switch to remote operations seamlessly. The flexibility it provides is outstanding.

From a financial perspective, it’s been a massive win. Our entire setup—including all SIP lines—costs us less than £10k a year. To put that into context, each of our secondary schools used to pay that much *individually* per year. Now, we have a unified, internal system that’s saving our Multi Academy Trust a significant amount annually while giving us more control and consistency.

Teachers and support staff genuinely love the platform. Features like click-to-call have been an unexpected highlight—especially when it comes to reaching out to parents through our MIS. It’s intuitive, efficient, and fits perfectly into our cloud-first approach.

I’m a huge fan of 3CX and can't see us moving away from it anytime soon. It’s not just a telephony solution; it’s part of our digital backbone now. Review collected by and hosted on G2.com.

If I had one wish for future development, it would be deeper integration with Microsoft 365. For example, being able to automatically assign extension numbers based on group membership—like giving everyone in a specific M365 group an extension starting with "32XX"—would streamline onboarding and user management even further. It’s a small ask, but it would take an already brilliant system to the next level. Review collected by and hosted on G2.com.

3CX stands out for its intuitive design and comprehensive feature set. The web client and mobile apps are incredibly user-friendly, empowering our clients to stay connected seamlessly from anywhere. Features like the visual call flow designer and straightforward user management make both initial setup and ongoing administration remarkably simple for businesses of all sizes, leading to high client satisfaction and fewer support requests for us. Review collected by and hosted on G2.com.

Okay, in general terms, one area for improvement in 3CX, particularly relevant for resellers managing multiple clients or larger organizations, lies in enhancing the flexibility and granularity of the multi-tenant system. While it offers a solid foundation, further development could focus on providing more advanced customization options and resource management at the individual tenant level.

Specifically, a key area for improvement could be finding more streamlined solutions for scenarios where multiple departments or tenants within the same physical location need to utilize the same SIP trunk or VoIP provider using the same public IP address. Current configurations for such scenarios can sometimes be complex or require workarounds. Simplifying this would significantly benefit resellers managing diverse client needs and improve deployment efficiency in various network environments. Review collected by and hosted on G2.com.

Flexibility, and Cost Savings with complete control . Review collected by and hosted on G2.com.

The customer support experience could be enhanced.

SMS / MMS features are not easy to setup. Review collected by and hosted on G2.com.

What I like the most, and users also praise, is its dashboard, which makes it easy to visualize the current scenario—whether we're having a bad day with many more abandoned calls than answered ones—and also something very useful: seeing the number of ongoing calls and calls waiting to be answered by agents. Review collected by and hosted on G2.com.

Honestly, I don't have anything specific to say that I dislike, but if I had to mention something, it would be about certain reports. After the 3CX version was changed (it had a general update), many useful reports are no longer available, and I'm not sure if they'll return in the future. Review collected by and hosted on G2.com.

After evaluating many options 3CX proved to offer most bang for the buck.

Particularly liked that you pay for simultaneous calls as opposed to per device which really suits the way our business works.

A good quality phone system says a lot about a company and 3CX delivers. It was easy to integrate with our company database to do advanced features like routing calls to customers account managers without having to use DDIs. Review collected by and hosted on G2.com.

None so far, it works really well and was very easy to set up and maintain. Review collected by and hosted on G2.com.

New features each year. Has a good address book and integration with smart phones. I liked being able to use older desktop phones that the users were familiar with. It didn't drop support for those phones and force me to buy new models. Review collected by and hosted on G2.com.

The pricing continued to increase each year. I started at $150 a year then it grew to over $700. My perpetual license was switched without notice to a required subscription license. Support said I was supposed to read a forum post.

I could never get the share screen feature to work in the web meetings. Seemed to be firewall issues on either end. Review collected by and hosted on G2.com.

1. Cost-Effective – Reduces phone bills by using VoIP and supports free internal calls.

2. Easy to Manage – User-friendly web interface, quick setup on Windows, Linux, or cloud.

3. Remote Work Ready – Supports web conferencing, mobile apps, and browser-based calling.

4. Flexible Deployment – Can be hosted on-premise or in the cloud (own server or 3CX hosting). Review collected by and hosted on G2.com.

Free version lacks some advanced features.

Requires annual license payment.

Some settings can be complex for beginners.

SMS and WhatsApp integration needs extra setup.

Cloud setup may not work smoothly on all platforms. Review collected by and hosted on G2.com.

- the community

- the training seminars

- the ease of setup and use

- the integration

- the updates from the devs have been really on-point Review collected by and hosted on G2.com.

I don't really have a downside for 3CX. The only thing I can think of would be possibly integrating/archiving the chat with Teams. Review collected by and hosted on G2.com.

Everything can be found all in one place. I don't have to go searching around multiple sites or applications to find what I'm looking for. Review collected by and hosted on G2.com.

Reporting is still lacking a bit. For instance - on my wallboard I can see my average wait time but cannot view this number in any reports Review collected by and hosted on G2.com.