VoIP • Head-to-head

AVOXI vs TrueNav: two different jobs, one decision

A dollar-billed global voice platform against a rand-billed local cloud PBX. We put verified 2026 pricing side by side and settle which job each one actually does for a South African business.

Last verified 18 August 2026 By the WhichVoIP editorial team 7 min read

$6.49/moAVOXI virtual number packages start here, billed in USD

R55/extTrueNav Basic cloud PBX, trunk and support included

150+ countriesAVOXI voice and number coverage

USD vs ZARthe billing split that decides this comparison

The short answer

Should my South African business choose AVOXI or TrueNav?

Match the provider to the job. AVOXI is a USD-billed international voice platform with numbers and cloud voice in 150+ countries, from $6.49 a month per number. TrueNav is a rand-billed local cloud PBX from R55 per extension. Need international presence? AVOXI. Need a purely local PBX? Compare the wider SA market first.

countries where AVOXI provides voice and numbers

global brands running on the AVOXI platform

rand per extension per month for TrueNav’s Basic cloud PBX, trunk included

of voice spend: AVOXI’s Standard platform fee ($14.99/mo minimum)

Cape Town Office At Dusk With A Business Phone On A Desk And The City Skyline Beyond The Window — AVOXI has run South African operations since 2006 – the same year TrueNav’s founding business, uThetha Telecoms, opened its doors in Cape Town.

Why this comparison keeps coming up (and why it shouldn’t)

Both names appear on SA VoIP shortlists, but they are built for different buyers. Work out which buyer you are and the decision mostly makes itself.

AVOXI is an international cloud voice platform, founded in Atlanta in 2001 and operating in South Africa since 2006. Its core product is presence: local, toll-free and TrueLocal verified-caller-ID numbers across more than 150 countries, delivered with SIP trunking, voice analytics, APIs and a contact-centre product on top. Everything is priced and billed in US dollars, and the platform claims 5,000+ global brands and 99.9% network uptime. The full breakdown is in our AVOXI review.

TrueNav is a Goodwood, Cape Town cloud PBX specialist with a 20-year local history (uThetha Telecoms from 2006, rebranded in 2022) and one of the strongest customer-review signals in the SA category: 4.8 stars across 114 Google reviews. It sells office telephony in rand: a Basic Business Cloud PBX at R55 per extension per month with the VoIP trunk, 24/7 Silver Remote Support and installation included, and an Advanced plan at R65 per extension. Details in our TrueNav review.

So the real question is not which platform is better engineered. It is whether your voice requirement crosses a border. A Johannesburg exporter that needs a London and Frankfurt number answered by a Sandton team has an AVOXI-shaped problem. A 12-person Bellville accounting firm that needs extensions, hunt groups and a porting plan has a cloud PBX-shaped problem, and TrueNav is one of many rand-billed providers competing for it.

✓

Bottom line: AVOXI sells international presence in dollars. TrueNav sells local office telephony in rand. Very few businesses genuinely need both from one contract.

Pricing side by side: platform fees vs per-extension rates

The two pricing models are structurally different. AVOXI charges a platform fee as a percentage of your voice spend with a monthly minimum; TrueNav charges a flat rand rate per extension with the trunk bundled in.

AVOXI’s published tiers: Standard at 3% of spend with a $14.99 monthly minimum, Premium at 5% with a $99.99 minimum, and Premium AI at 10% with a $199.99 minimum, plus virtual number packages from $6.49 per month. AVOXI notes that regulatory fees and taxes may apply on top. TrueNav’s Basic plan is R55 per extension per month including the VoIP trunk, 24/7 Silver Remote Support and installation, with one concurrent call per extension and support for 1 to 30 extensions on month-to-month terms. Advanced is R65 per extension, with a 1-year agreement standard and month-to-month options.

Factor	AVOXI	TrueNav
Built for	International presence: numbers and voice in 150+ countries	South African office telephony, 1–30 extensions
Entry pricing	Standard: 3% of spend, $14.99/mo minimum; numbers from $6.49/mo	Basic: R55/ext/month incl. trunk, 24/7 support and installation
Next tier up	Premium: 5% of spend, $99.99/mo minimum	Advanced: R65/ext/month, 1-year agreement standard
Billing currency	USD – your rand cost moves with the exchange rate	ZAR – no foreign-exchange exposure
Setup and install	Self-serve platform onboarding	Installation included in the Basic rate
Concurrency	Platform-level, scales with spend	1 concurrent call per extension on Basic
Contract	Monthly platform minimums	Month-to-month on Basic
AI capability	Premium AI tier: proactive monitoring, intelligent caller ID	No published AI tier

Watch the percentage: AVOXI’s platform fee scales with your voice spend, in dollars. A busy outbound team’s effective cost is the tier percentage on top of every dollar of usage, and the rand price of that bill changes with the exchange rate every month. Model a realistic month of traffic before you sign, not just the minimum.

AVOXI pricing from avoxi.com/pricing; TrueNav pricing from WhichVoIP’s provider fact sampling, May–August 2026. All figures verified 18 August 2026 and exclude taxes and regulatory fees.

The honest question is not which provider is better. It is whether your voice requirement is international or South African – because that answer picks the shortlist for you.

WhichVoIP editorial view

What each provider actually does well

Strip out the marketing and both have a defensible core. They just defend different ground.

Where AVOXI is strong

Reach and tooling. One platform covers local, toll-free and non-geographic numbers in 150+ countries, with TrueLocal verified caller ID to protect answer rates on outbound campaigns, 40+ integrations, voice APIs and a contact-centre product. The Premium AI tier adds proactive service monitoring, intelligent caller ID on up to 50,000 calls a month and a designated support engineer. The rate card is published, in public, in dollars – you can price the platform before you ever speak to sales.

Where TrueNav holds its ground

Local economics and local accountability. R55 per extension buys the PBX, the trunk, installation and 24/7 remote support in one rand-denominated line item, month-to-month, with no exchange-rate surprises. The 4.8-star rating across 114 Google reviews is among the strongest public customer signals in the SA cloud PBX category, and B-BBEE Level 2 status matters in procurement scoring. Those are facts worth respecting – and they are also facts a dozen other rand-billed SA providers will compete against line by line, which is exactly why we benchmark the whole category rather than crowning one name.

Which should you pick?

Answer one question first: does your business need to make or receive calls with a local presence outside South Africa?

If yes, AVOXI is the stronger fit. An international contact centre, a multi-market sales team or an exporter that needs in-country numbers answered in SA is squarely AVOXI’s use case. It has been building for cross-border voice since 2001, the coverage is real, and the published USD pricing means you can model the cost honestly – including the FX exposure – before committing.

If no, do not stop at this comparison. For a purely South African cloud PBX, TrueNav’s R55 Basic rate is a fair local benchmark, but it is one option in a crowded rand-billed market where trunk bundling, concurrency limits, support hours and porting terms vary widely. Put the whole category side by side on our cloud PBX comparison page before you commit to any single provider.

South African Business Owner Comparing Phone System Options On A Laptop Next To An Ip Desk Phone — TrueNav’s Basic rate bundles the trunk, installation and 24/7 remote support into R55 per extension – when you compare quotes, demand that competing providers itemise exactly those three lines.

Our verdict

For South African businesses with genuine international voice requirements, AVOXI is our pick: 150+ country coverage, verified outbound caller ID, a contact-centre product and a published USD rate card you can interrogate before buying. The honest caveat is the billing model – a percentage of spend, in dollars, means your rand cost rises with both call volume and the exchange rate, so model a realistic month before signing. For a purely local cloud PBX, this head-to-head is the wrong lens: TrueNav’s rand pricing is a useful benchmark, but the SA market has too many credible rand-billed competitors to settle the decision from a two-provider comparison.

Our recommendation: international requirement → start with AVOXI. Local-only requirement → benchmark the full SA market on our cloud PBX comparison, then get matched quotes to test the pricing in this article against real offers.

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Frequently asked questions

What is the difference between AVOXI and TrueNav?

They solve different problems. AVOXI is an international cloud voice platform founded in Atlanta in 2001: virtual numbers and voice in 150+ countries, billed in US dollars, with SIP trunking, APIs and a contact-centre product. TrueNav is a Cape Town cloud PBX specialist selling rand-billed office telephony from R55 per extension per month, trunk and support included.

How much does AVOXI cost in South Africa?

AVOXI publishes three USD platform tiers: Standard at 3% of voice spend with a $14.99 monthly minimum, Premium at 5% with a $99.99 minimum and Premium AI at 10% with a $199.99 minimum. Virtual number packages start at $6.49 per month, and regulatory fees and taxes may apply. Because billing is in dollars, the rand cost moves with the exchange rate.

How much does TrueNav’s cloud PBX cost?

TrueNav’s Basic Business Cloud PBX is R55 per extension per month, including the VoIP trunk, 24/7 Silver Remote Support and installation, with one concurrent call per extension and support for 1 to 30 extensions on month-to-month terms. The Advanced plan is R65 per extension, with a 1-year agreement standard and month-to-month options. Figures from WhichVoIP’s 2026 provider fact sampling.

Does AVOXI bill in rand?

No. AVOXI’s published pricing is in US dollars, so a South African business carries foreign-exchange exposure on the monthly bill. That is manageable for companies earning foreign revenue, but a purely rand-revenue business should model what a weaker rand does to the effective cost before committing.

Which is better for an international contact centre?

AVOXI. The platform was built for cross-border voice: local-presence numbers in 150+ countries, TrueLocal verified caller ID to protect outbound answer rates, 40+ integrations and a dedicated contact-centre product, with an AI-enabled top tier for proactive service monitoring. A locally focused SA cloud PBX is not designed for that workload.

Is TrueNav month-to-month?

The Basic plan is month-to-month at R55 per extension. The Advanced plan at R65 per extension carries a 1-year agreement as standard, with month-to-month options available. Confirm notice periods and any porting or hardware terms in writing at quote stage, as you should with any provider.

Can I use AVOXI for a purely local South African phone system?

You could, but it is rarely the right tool. AVOXI’s value is international coverage and its pricing is USD-based, so a local-only office pays FX exposure for reach it never uses. Rand-billed SA cloud PBX providers compete hard on per-extension pricing; compare that market directly before deciding.

Keep reading

What are VoIP numbers and how are businesses using them? South African phone numbers explained Best VoIP providers in South Africa

Sources: avoxi.com/pricing, avoxi.com/about-us and the AVOXI platform pages; WhichVoIP provider fact sampling, May–August 2026 (TrueNav plan pricing and inclusions); WhichVoIP canonical reviews of AVOXI and TrueNav. Verified 18 August 2026.