Your extension, anywhere
Free apps for iPhone, Android, Windows and the web. Calls ring on the desk phone, laptop and mobile at once, so off-site staff never miss a customer.
3CX business phone system · for teams of 10–200
Every call, chat and WhatsApp in one place. One fixed annual price.
3CX gives your team desk phones, mobile and desktop apps, website live chat, WhatsApp, Facebook and SMS in one system, with optional AI that answers calls and writes the notes. It is licensed per system, not per user, so adding staff does not add to the bill.
- Authorised 3CX partner
- Bangkok engineers since 1985
- Cloud or on-premise
Sound familiar?
The old PBX is out of support
Parts are hard to find, changes need a technician, and nobody wants to touch it.
Calls get missed off-site
Staff work from home, client sites and the road, but the phone only rings at the desk.
Customers chat on personal phones
WhatsApp and Facebook enquiries sit on staff phones, untracked and lost when people leave.
The cloud phone bill keeps climbing
Per-user plans charge for every new starter, even for people who rarely take calls.
3CX solves all four, on one platform, at a price that does not rise every time you hire.
What you get
A complete communications system, not just phones
One inbox for every channel
Website live chat, WhatsApp, Facebook Messenger and SMS land beside your calls. Agents reply from the business identity, and every conversation is logged.
AI that answers and takes notes
An AI receptionist routes callers by name or need. Calls are transcribed, summarised with action items, and scored for sentiment.
Call centre tools built in
Queues, ring groups, call recording, live wallboards and reports. Managers see who is waiting and who is answering, from the browser or the app.
Works with the tools you use
Microsoft 365, Google Workspace and leading CRMs. The caller's record pops up as the phone rings, and calls are logged automatically.
Secure and in your control
Encrypted calls and apps, automatic certificate management, and role-based access to recordings and reports. Host it with 3CX, in your own cloud, or on site.
How it fits together
One system in the middle of everything
Your people
Desk phones
iPhone and Android apps
Web and Windows apps
3CX
Hosted, your cloud, or on-premise
CRM · Microsoft 365 · Google
Your customers
Phone lines and numbers
WhatsApp · Facebook · SMS
Live chat on your website
Sized for your business
Right-sized from 10 to 200 users
10–30 users
Small office
Replace an ageing PBX or a pile of mobile phones with one professional number and auto attendant.
- Auto attendant and business hours
- Voicemail to email
- Mobile, desktop and web apps
- Free StartUP edition for up to 10 users, hosted by 3CX
Typical fit: StartUP or Basic
Recommended
30–80 users
Growing team
Sales and support teams that need queues, CRM pop-ups and every channel in one place.
- Call queues and wallboards
- CRM and Microsoft 365 integration
- Reports and call recording
- Advanced call handling and routing
Typical fit: Pro
80–200 users
Multi-site or contact centre
Branches, call centres and busy front desks that want AI to take the routine load.
- AI receptionist and AI agents
- Transcripts, summaries and sentiment
- Branch offices on one system
- Everything in Pro
Typical fit: AI edition
New in 3CX AI
Let AI handle the routine calls
The AI edition puts a capable assistant on every line. You choose the AI provider, OpenAI or xAI Grok, or keep transcription on your own server for privacy.
- AI Receptionist
- Answers in natural speech, understands what callers want, and puts them through to the right person or team.
- AI Personal Assistant
- Screens calls for busy staff, takes messages, and passes them on by chat.
- AI Agents
- Handle set tasks such as first-line customer service, and hand over to a human when needed.
- Transcription and summaries
- Every call becomes searchable text with notes, action items and a sentiment score in your reports.
Predictable cost
Pay for the system, not every seat
3CX is licensed by the number of calls your business makes at the same time, internal and external. Most of your team are not on the phone at once, so one licence covers far more people than a per-user plan.
- One annual price for the whole system
- New starters, part-timers and shared desks cost nothing extra
- Free apps for every user
- Choose 3CX hosting, your own cloud, or a server on site
Editions
Compare 3CX editions
| Feature | Basic | Pro | AI |
|---|---|---|---|
| Calls, extensions, voicemail and auto attendant | ✓ | ✓ | ✓ |
| iPhone, Android, Windows and web apps | ✓ | ✓ | ✓ |
| Advanced call handling and queues | – | ✓ | ✓ |
| Reporting and CRM integration | – | ✓ | ✓ |
| AI Receptionist, Personal Assistant and AI Agents | – | – | ✓ |
| AI transcription, summaries and sentiment | – | – | ✓ |
The free StartUP edition covers up to 10 users, with hosting included. All editions are priced per system by simultaneous calls, with no per-user fees. Ask us which edition and size fit your call volumes.
Switching is simple
From first call to go-live in four steps
- 1
Free audit
We review your lines, numbers, handsets, network and how calls flow today.
- 2
Design and fixed quote
The right edition, hosting and phones, with call routing mapped out before anything changes.
- 3
Install and test
We build 3CX alongside your current system, connect your SIP trunks, and test every route.
- 4
Train and go live
Short sessions for staff and managers, a planned cut-over, then local support from our Silom office.
Why NETsolutions Asia
A local partner who handles the whole job
We have supported Bangkok businesses since 1985. One team covers the phone system, the network it runs on, and the cabling behind it.
- Authorised 3CX partnerLicences, setup and upgrades from people who work with 3CX every day.
- Phones supplied and configuredDesk phones and headsets, including Fanvil, delivered ready to plug in.
- Network and cabling in-houseOur structured cabling team gets call quality right from the start.
- Ongoing supportMoves, adds, changes and help desk under a managed service or ad hoc.
Questions we often hear
Can we keep our existing phone numbers?
In most cases, yes. We check with your carrier during the free audit and plan the move so callers notice nothing.
Do we need new desk phones?
Not always. 3CX works with many popular IP phones, and many staff choose the free apps instead of a desk phone. We check your existing handsets and only recommend new ones where they add value.
Cloud or on-premise: which is better?
Hosting with 3CX or in your own cloud means no server on site and easy remote working. On-premise suits sites with strict data rules or existing server capacity. The features are the same, and we will recommend the fit for you.
What is a simultaneous call?
It is one call in progress at the same moment, internal or external. Licences are sized on your busiest moment, not on headcount, which is why 3CX usually costs less than per-user plans as you grow.
Does 3CX work with Microsoft 365 and our CRM?
Yes. 3CX integrates with Microsoft 365, Google Workspace and leading CRMs for caller pop-ups, click-to-call and automatic call logging. Tell us which CRM you use and we will confirm the details.
Is the AI optional?
Yes. The AI features come with the AI edition. You can start on Basic or Pro and upgrade later without changing phones or numbers.
See 3CX working with your own call flows
Book a free 30-minute demo and audit. No obligation, and a fixed-price quote at the end.