PBX Systems
Asterisk, FreeSWITCH, and 3CX PBX deployments — on-premise, cloud or hybrid. Custom IVR, call queues, and ring groups.
Business PBX systems: 3CX, Asterisk and FreeSWITCH
Voiceflow installs and supports business phone systems built on 3CX, Asterisk and FreeSWITCH, on your premises, in the cloud or as a hybrid of both. A PBX is the brain of your telephony. It routes incoming calls, runs your menus and queues, connects extensions and links your business to the telephone network.
The platform you choose matters. 3CX suits offices that want a ready-to-use phone system with mobile apps and built-in video meetings. Asterisk and FreeSWITCH are open-source engines that give far more flexibility for custom call flows, specialist requirements and high call volumes, with no per-seat software licence fees. We help you choose the one that fits how your business actually takes calls.
What our PBX service includes
3CX phone systems
Installation, configuration and support of 3CX on Windows or Linux, on-premise or in the cloud, with softphones, mobile apps, web client and video meetings.
Asterisk PBX
Custom Asterisk builds for businesses that need flexibility, integration with other systems or no per-seat licensing, with full control over how calls are handled.
FreeSWITCH
High-performance FreeSWITCH deployments for demanding environments, including high call volumes, conferencing and contact centre back ends.
IVR and call flows
Professional auto-attendants and multi-level menus, with recorded or text-to-speech prompts and routing by time of day, caller or department.
Queues and ring groups
Call queues, ring groups, hunt groups and after-hours routing, so every call reaches the right person and none are lost.
Migration and multi-site
We move you off an old PBX with minimal downtime and connect multiple offices and remote staff onto a single dial plan.
From first call to launch
Requirements
We map how your calls flow today: extensions, departments, numbers and any systems the phones must connect to.
Platform recommendation
We recommend 3CX, Asterisk or FreeSWITCH and explain the reasoning, costs and trade-offs.
Build and migrate
We build the system, configure call flows, provision handsets and cut over on an agreed date.
Training and support
We train your team and provide ongoing support, with remote support nationwide and on-site visits in Gauteng when needed.
Who this is for
A Voiceflow PBX suits growing offices that have outgrown a basic phone line, businesses replacing an old on-premise system, and organisations with several branches that need one consistent phone system. It also suits companies with unusual call-routing needs that off-the-shelf systems cannot handle.
Frequently asked questions
Which PBX is right for my business: 3CX, Asterisk or FreeSWITCH?
3CX is usually the quickest route for a standard office, with apps and video included. Asterisk suits businesses wanting custom call handling or integration, and FreeSWITCH suits high-volume or specialist environments. We recommend based on your call flows, user count and budget.
Should my PBX be on-premise or hosted?
On-premise gives you full control and keeps the system in your building, but needs power backup and local hardware. Hosted removes the hardware and maintenance and works well for multiple sites and remote staff. Many businesses choose a hybrid. We explain the trade-offs for your situation.
Can you take over support of my existing PBX?
Often yes. We review the current system and, where it makes sense, take over support, upgrade it or plan a migration to a newer platform.
Can the PBX integrate with my CRM or other software?
Yes. We can connect phone systems to common CRMs and helpdesks for click-to-dial, call logging and screen pops, and build custom integrations where needed.
How long does a PBX installation take?
A standard small-office system can often be live within days once hardware and numbers are ready. Multi-site or custom builds take longer, and we agree a realistic timeline with you before starting.
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Book a free consultation with our team.