The terms IP PBX and VoIP phone system are often used interchangeably to describe a business phone system that uses Internet Protocol (IP) to transmit voice. VoIP therefore simply stands for ‘Voice over Internet Protocol’. The switchboard element of your private phone system is the PBX, which stands for private branch exchange.

Host with 3CX ® and let us take care of management and updates, or set it up in your Google, Azure or Amazon account with our easy setup wizard.

Get a full-featured PBX with 3CX ® and integrate with website live chat, WhatsApp and text messages, all in one system ☛ Try PBX now!

What is a cloud PBX and what are the benefits of using it? 3CX ® explains everything and covers all its benefits ☛ Visit us and learn more!

Select one of the 3CX supported VoIP Providers and make your configuration easy and quick. All listed VoIP Providers’ templates are updated and tested with every release by the 3CX team!

Configuring SIP Trunks / VoIP Providers in 3CX ® is ever so easy Take a look at this quick guide on how to do this in 3CX.

Use 3CX recommended SIP trunk providers to ensure the best experience with 3CX Phone System. Tested for ultimate interoperability and easy configuration.

View our frequently tested, 3CX supported SIP trunk providers in the USA. Maximise the potential of your 3CX Phone System and ensure best compatibility.

A hosted PBX is a private branch exchange (PBX) delivered as a hosted service. It’s also known as a virtual PBX and the advantages that companies experience are the elimination of installation, operation, and maintenance costs of their VoIP PBX. This is because their VoIP service provider hosts their PBX for them.

3CX's small business phone system includes unlimited extensions and a full feature suite ☛ Deploy on-premise or in the cloud!