Free VoIP in South Africa: what “free” actually means

What “free” actually means in South African VoIP

The convention is precise, and providers use it consistently: free = no separate line rental. It does not mean no calls cost money, and it does not mean no monthly commitment.

A traditional Telkom landline charges a monthly rental of around R200–R400 just to keep the line live, before you make a single call. A “free” VoIP plan strips that rental away. In its place you have:

• A monthly minimum CallTime spend – typically R50 – that becomes airtime balance you actually use.
• Per-second billing to numbers outside the provider’s own network.
• Free calls to other users on the same provider’s network (and, in Afrihost’s case, the wider CTEL network including Axxess VoIP).
• No long-term contract. Pay monthly, leave when you want.

That is genuinely a better deal for most low-volume users – you stop paying rent on a line you barely use. But it is not “free calls”. Anyone selling it as that is overstating what the providers themselves say.

The real cost: what R50 a month actually buys you

Run the maths through Afrihost’s published rate card and the budget you need depends almost entirely on what you call.

Afrihost’s local rates (Pure VoIP source) are R0.40 a minute to a Telkom local or national landline and R0.80 a minute to a mobile on any of the four big networks. Per-second billing, so a 30-second call is 20c (mobile) or 10c (landline) rather than a full minute.

Source: afrihost.com/voip/, “Local VoIP Call Rates” table. Axxess publishes its own rate card; figures are in the same broad range. International rates vary widely – Afrihost lists USA at R0.31/min, UK at R3.82/min, Australia at R0.79/min – so factor those in if you call abroad.

The two providers we can verify on their own pages

We pulled each provider’s live website in May 2026 and only included claims they make on their own pages.

Both run per-second billing, both roll unused CallTime over for three months, both let you port a geographic landline number in.

1. Afrihost Pure VoIP – the broadest free-call network

No separate line rental, R50/month minimum CallTime spend, and free calls to any number on the underlying CTEL network – which includes Axxess VoIP.

Source: afrihost.com/voip/, verified 27 May 2026.

2. Axxess VoIP – same model, six devices per account

A near-mirror of Afrihost’s terms, positioned for Axxess fibre and LTE customers, with one notable upgrade: up to six devices on a single VoIP account.

Axxess uses the same R50 / R100 / R300 / R500 CallTime ladder. No separate line rental, per-second billing, three-month rollover, and free calls between Axxess VoIP numbers. Per Axxess’s own CallTime page, you can register the same account on up to six devices simultaneously – useful if you want the same number on a desk handset, a laptop softphone and a phone app at once.

Axxess publishes its per-minute call rates on a separate rate card rather than the CallTime page itself, so this guide doesn’t quote specific cents/minute for them. The package mechanics are identical to Afrihost; the per-minute figures will differ slightly. Check Axxess’s current rate card before loading larger amounts.

Source: axxess.co.za/voip and /voip/calltime, verified 27 May 2026.

And the other kind of “free”: 3CX’s free phone-system tier

A different “free” worth knowing about – the phone system is free, but the calling is not.

3CX is a phone-system platform (PBX software), not a VoIP service. Its 4SC Basic Free tier – launched in March 2026 to replace the older SMB FREE edition that was retired on 30 January 2026 – gives very small deployments the PBX itself at no licence cost: webclient, mobile apps, basic call handling for up to four simultaneous calls.

The catch is the part 3CX does not include: you still need a SIP trunk to actually place and receive calls to ordinary phone numbers. The trunk is a separate, paid product from a SIP provider – and Afrihost Pure VoIP or Axxess VoIP, the two providers above, are the kinds of services that supply it.

If you need a full phone system rather than a single VoIP line, the practical “free” path is 3CX 4SC Basic Free plus a paid SIP trunk. The PBX licence is free; the airtime is not.

How a “free” VoIP line compares to WhatsApp, Teams and Google Meet

All three apps let you call other app users for free over the internet. None of them give you an SA phone number, and you can’t put any of them on a business card.

That is the real divide. A free VoIP line gives you a working geographic or 087 number that any landline or mobile in the country can dial – with all the call-forwarding, voicemail and porting that comes with a real phone number. WhatsApp, Microsoft Teams (free tier) and Google Meet are excellent for app-to-app voice and video, and for many small teams they cover the internal-call need. They are an addition to a VoIP line, not a replacement for one.

What you don’t get with a no-line-rental VoIP line

The “free” price comes with a deliberately narrow product. These are the things that aren’t in the box.

• PBX features. No IVR / auto-attendant, no call queues, no extensions, no ring groups, no call recording. If you need any of those, look at Cloud PBX providers instead.
• Emergency calling. SA VoIP providers are not required to route 10111 / 10177. Do not make a no-rental VoIP line your only phone if emergency dialling matters – keep a mobile alongside it.
• SLA or uptime guarantee. A retail prepaid service does not come with a service-level agreement.
• Dedicated support. Self-service knowledge bases and email tickets, generally. No account manager and no 24/7 phone line.
• Internet of your own. Stable fibre or fixed LTE delivers good call quality; mobile data is workable but inconsistent. Budget about 100 kbps per concurrent call.

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