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AW

Annmarie W.

personal lines agency support

Insurance

Small-Business (50 or fewer emp.)

3/13/2026

Guest users or non-business users of the software, not included in G2 scores.

"Work-from-Home Friendly: Dial Customers from the “Office” Number"

4/5

What do you like best about 3CX?

can work from home and dial customers from "office" rather than personal phone Review collected by and hosted on G2.com.

What do you dislike about 3CX?

we do not know how to shut it off on the Samsung cellphone Review collected by and hosted on G2.com.

Response from Monika R of 3CX

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Hello Annmarie! Thanks for your review. We're glad to hear 3CX is helping you work from home while keeping your personal number private.

Regarding your Samsung device, we recommend contacting your IT administrator or the person who set up your 3CX system, as they can guide you on how to log out or disable the app correctly on your device.

RH

Roberto H.

Estimator

Construction

Small-Business (50 or fewer emp.)

1/8/2026

"Efficient and User-Friendly App"

4/5

What do you like best about 3CX?

Easy to use, practical, efficient. I use it every day for my office and also extension lines with my coworker. Review collected by and hosted on G2.com.

What do you dislike about 3CX?

Tech support, try to reach out and never got an answer. Do not complain cause is a free app. Review collected by and hosted on G2.com.

Response from Monika R of 3CX

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Hi Roberto!Thanks for your feedback. Great to hear 3CX is helping you stay connected with a US number while abroad!

Regarding support: for free users, direct 3CX support isn't included, but we do have a very active community forum, where you can ask questions and often get help from other users or partners who may have run into similar issues. You’re also always welcome to work with one of our global partners for hands-on assistance.

See how 3CX improved

AE

Verified User in E-Learning

Small-Business (50 or fewer emp.)

10/7/2025

"Super simple to use"

3.5/5

What do you like best about 3CX?

What I like most about 3CX is its ease of use and versatility. The tool brings together all the functions needed for effective communication: calls, video conferences, internal chat, voicemail... everything is centralized in a single clear and smooth interface. Review collected by and hosted on G2.com.

What do you dislike about 3CX?

What I like a little less is the interface design, which seems a bit dated compared to other tools of the same type. The ergonomics remain good, but a more modern visual and a more dynamic layout would make the user experience even more pleasant and intuitive. Review collected by and hosted on G2.com.

What problems is 3CX solving and how is that benefiting you?

3CX clearly simplifies communication management within the company. Before, it was necessary to juggle multiple tools for calls, messages, or video conferences, whereas with 3CX, everything is centralized in one place. This saves time, prevents information loss, and allows for better tracking of exchanges with clients or colleagues.

It is also very practical for remote work: I can answer professional calls from my phone or computer without being in the office. In the end, 3CX improves responsiveness, collaboration, and service continuity, which is a real advantage on a daily basis. Review collected by and hosted on G2.com.

Response from Monika R of 3CX

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Hello! Thanks for your review. We're glad to hear 3CX has helped centralize your communication tools and improved day-to-day collaboration, especially for remote work. We appreciate your feedback on the interface design - while function remains the priority, visual improvements are an area we continue to review.

SA

Spencer A.

Senior System Architect

Small-Business (50 or fewer emp.)

4/30/2025

"Adaptable, Configurable, Dependable"

5/5

What do you like best about 3CX?

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.

What do you dislike about 3CX?

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.

What problems is 3CX solving and how is that benefiting you?

3CX provides us with a reliable and scalable phone system: it does call queuing, ringback and sends voicemails directly to our Teams channels. We have written custom phone templates for high-security areas, and have had great success with the mobile app for extending our PBXs reach for our users. Review collected by and hosted on G2.com.

Response from Monika R of 3CX

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Hello Spencer! Thanks for your review. We're glad to hear that 3CX has been a reliable and adaptable solution for your business over the years, and that it's supported your custom requirements, including out-of-hours routing and secure deployments. We appreciate your feedback on SIP device compatibility - glad to hear our support resources and community have been helpful. Thanks again for sharing your experience.

ZH

Zac H.

Senior Systems Administrator at Allscripts

Small-Business (50 or fewer emp.)

1/25/2026

"Feature-Rich, Robust, and Hard to Beat"

5/5

What do you like best about 3CX?

No product is more feature rich and robust as 3cx. Review collected by and hosted on G2.com.

What do you dislike about 3CX?

Cost. Aside from that—which honestly isn’t too bad—I don’t see any real downsides, other than the occasional security flaw or incident. Review collected by and hosted on G2.com.

Response from Monika R of 3CX

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Hi Zac. Thanks for the great feedback.

We’re glad to hear you value the feature set and reliability of 3CX. As for cost, we aim to remain one of the most affordable full-featured PBX solutions in the market, especially compared to traditional systems or all-in-one SaaS tools.

Regarding security, we take it seriously. Following the 2023 incident, we’ve implemented strict internal processes. Appreciate your continued trust in 3CX.

See how 3CX improved

NN

N N.

Inside sales evengilist

Mid-Market (51-1000 emp.)

10/15/2025

"“Great tool for managing client calls and CRM integration”"

5/5

What do you like best about 3CX?

Its easy to use just one click you can dial and connect with the customer and you can find history of call logs. Review collected by and hosted on G2.com.

What do you dislike about 3CX?

Sometimes some voice issues wil be there. Review collected by and hosted on G2.com.

Response from Monika R of 3CX

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Thanks for your review! We're glad to hear 3CX has helped streamline your client communication and CRM tracking, making follow-ups and sales processes more efficient. We appreciate the feedback on occasional voice issues - your input is noted.

MR

MOISÉS R.

Administrador de Redes

Mid-Market (51-1000 emp.)

10/27/2025

"Practical and Complete, But Bugs in the App for Windows"

4.5/5

What do you like best about 3CX?

easy to manage and use. practical and simple, yet at the same time complete. Review collected by and hosted on G2.com.

What do you dislike about 3CX?

app bugs for Windows. Sometimes it is necessary to restart it frequently. Review collected by and hosted on G2.com.

Response from Monika R of 3CX

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Hey Moises. Thanks for your review. We're glad to hear 3CX has been easy to manage and is supporting your internal and external communication effectively. We appreciate the feedback on the Windows app - your input is noted.

CJ

Christopher J.

Director Of Information Technology

Enterprise (> 1000 emp.)

4/23/2025

"Transformed Our Telephony Across 20 Schools – Reliable, Cost-Effective, and Cloud-Ready"

5/5

What do you like best about 3CX?

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.

What do you dislike about 3CX?

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.

What problems is 3CX solving and how is that benefiting you?

Before moving to 3CX, our telephony setup was fragmented, inconsistent, and—frankly—expensive. Each school had its own legacy phone system, with varying suppliers, support contracts, and no way to centrally manage anything. The secondary schools alone were each paying upwards of £10k a year just to keep outdated systems alive.

3CX brought everything under one roof. We now have a fully integrated, centrally managed phone system across 20 sites, with unified extension dialling, remote capability, and SIP-based flexibility. Every staff member—whether based at a school or working remotely—has their own extension, which has vastly improved internal comms, safeguarding follow-ups, and emergency coordination.

It’s also saving us a huge amount of money. What used to cost tens of thousands across various schools is now under £10k a year total, including SIP lines. That’s a serious budget win for a Trust of our size.

But it’s more than just cost-saving. The ability to make and receive calls from laptops or mobiles, especially during lockdowns or school closures, has been invaluable. Our MIS system integrates beautifully with 3CX’s click-to-call, so when you're chasing parental contacts, it’s smooth and fast—no more scribbling numbers or navigating phone trees.

Overall, 3CX has helped us move away from outdated telephony towards a cloud-first, modern, and scalable solution that meets the real-world needs of schools. Review collected by and hosted on G2.com.

Response from Monika R of 3CX

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Hello Christopher! Thanks for the detailed review. We're glad to hear that 3CX has been able to deliver flexibility, cost savings, and a unified communication system across your Multi Academy Trust. It’s great to know features like click-to-call and remote access have made a real difference for your staff and operations. We appreciate the feedback on Microsoft 365 integration - it's noted. Thanks again for choosing 3CX as part of your digital strategy.

FC

Ferry C.

IT Engineer

Small-Business (50 or fewer emp.)

7/16/2025

"Our Overall experience is rather possitive"

4/5

What do you like best about 3CX?

Friendly web interface.

Rich features with just a few clicks.

Phone connections using default and custom templates made easy. Review collected by and hosted on G2.com.

What do you dislike about 3CX?

Playback my sound files live through web interface

Short dial code for listening every music assigned on the call center.

Customized security options for allowing / disallowing extensions to be called within the same call center.

Develop a way to allow IVRs to to tranfer / route through bridged call centers for incoming calls from either call center A or call center B, using ques from one call center to another. Review collected by and hosted on G2.com.

Response from Monika R of 3CX

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Hey Ferry! Thanks for your review. We're glad to hear 3CX has been reliable for remote calling and that you're finding the interface and configuration options useful. We appreciate your suggestions regarding IVR routing, call center control, and playback features - these are all noted.

LK

Lasantha K.

Engineer VoIP

Small-Business (50 or fewer emp.)

4/19/2025

"Absolutely Love 3CX as a Reseller! A Game-Changer."

5/5

What do you like best about 3CX?

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.

What do you dislike about 3CX?

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.

Response from Monika R of 3CX

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Hi Lasantha! Thanks for the great review. We're glad to hear that 3CX has been a solid solution for you as a reseller and that the features, ease of use, and client satisfaction are meeting expectations. We appreciate the detailed input regarding multi-tenant setups and SIP trunk scenarios, your insights are valuable and noted. Thanks again for your continued support.