Customers often get confused with modern telecoms terms and features. We thought we should shed some light on these terms to ensure you make the right decisions.

Follow these rules to help you choose: If your business already owns a telephone system and is looking to make cheaper calls, then you only need VoIP, NOT a PBX. If you do NOT have a telephone system and want to connect multiple telephone users in a company, then you need a PBX. Cloud PBXs are VoIP-based and comes pre-configured with VoIP.

VoIP stands for Voice over Internet Protocol. Its simply means we are calling over the internet instead of a conventional Telkom landline. VoIP features are basic and usually only allow you to make and receive calls. PBX features like call recording, voicemail, call transfer, voice menus, queues etc. are NOT available on VoIP lines. If you do require any of the aforementioned PBX features then you require a PBX, be it onsite or in the cloud the choice is yours.

A PBX or PABX, which stands for private (auto) branch exchange, is basically a 150 year old term used for a device used to “switch” calls privately, you may also know it as a switchboard. Presently when you buy a PBX it is usually VoIP capable and comes with a VoIP line pre-installed. Older PBX systems still have the ability to interface with landlines, but in the case of a Cloud PBX it uses VoIP only and no conventional landlines.

The future of telephony is of such a nature that everything will become digital and the majority of calls will be made over the Internet (VoIP). In the future there will be no landlines apart from the national fibre network forming an Internet network between businesses, homes and mobile devices. Fibre connectivity could also include microwave (wireless) solutions for outlying areas. Havex is at the forefront of this telephony evolution and we prefer that our customers bring their own connectivity and hardware, because that is the way of the future.

If you have any questions please ask us by emailing