Your office phone system shouldn't cost more than your office rent. We compared them all so you don't have to.
| WhichVoIP Score ↕ | Provider ↕ | From (R/mo) ↕ | Call Rates | Best For | Key Features |
|---|---|---|---|---|---|
| 9.0/10Read the full review | Switch Telecom Sponsor ✔ Provider-verified Hosted PBX + SIP trunking |
R26/ext/mo
|
|
Best Overall | ✓✓✓✓✓✗✓ 1–1000+ users |
| 7.5/10Read the full review | Yeastar On-Prem/Cloud PBX platform (P-Series) · bought through a reseller |
R65/user/mo, reseller-quoted (R65-185 via DSL Telecom, not Yeastar’s own list price) |
Not published — set by reseller/SIP trunk provider | Deep Feature Set | ✓✓✓✓✓✓✓ SME-mid-market users |
| 7.0/10Read the full review | NoPBX Mobile/GSM-based PBX (smartphone-as-extension) |
R65/user PAYG + R90 base |
|
Micro & Solo Business | ✓✗✓✗✗✗✗ Solo-field teams users |
| 7.8/10Read the full review | Axxess Basic VoIP only (no Cloud PBX) |
PAYG only |
32c/min landline, 90c/min mobile | Fibre + PBX Bundle | ✓✓✓✗✓✗✗ 3–100 users |
| 7.9/10Read the full review | 3CX Software PBX, licensed per simultaneous call · buy direct or via a partner |
R11/user/mo at 40 users
|
Depends on SIP trunk provider | DIY / Tech-Savvy | ✓✓✓✓✓✓✓ 40 (entry tier) to 8,192 users |
| 7.0/10Read the full review | Vox Telecom Enterprise Cloud PBX |
Quote-basedOmniOne |
35c/min landline, 95c/min mobile | Established Businesses | ✓✓✓✓✓✓✓ 10–1000+ users |
| 6.8/10Read the full review | United Telecoms Enterprise Cloud PBX |
R65/ext/mo (Essential; Classic R85/ext) |
32c/min landline, 90c/min mobile | Growing Teams | ✓✓✓✓✓✓✓ 5–500+ users |
| 6.4/10Read the full review | Telkom Business Hosted Cloud PBX (iPECS Cloud) |
Quote-basediPECS Cloud |
Not publicly published | National Brand & Reach | ✓✓✓✗✗✗✗ From 4 users users |
| 7.7/10Read the full review | Microsoft Teams Phone Cloud UC / PBX via Microsoft 365 |
$10 (~R185)/user/mo licence |
Depends on PSTN route (Calling Plan, Direct Routing or Operator Connect) | Microsoft 365 Integration | ✓✓✓✗✗✗✗ Any (per-user) users |
Cloud PBX pricing in South Africa follows two models: per-extension flat rates (R49–R250/month) and per-minute billing on top of a base fee. If your team makes fewer than 200 outbound minutes per user per month, a flat-rate plan from Switch Telecom will likely cost less. For heavy callers, per-minute rates matter more than the seat price, so compare published rate cards — note that some providers do not publish call rates at all and will only quote them. Ask each provider for a cost projection based on your actual call data — any decent provider will do this free of charge.
This is uniquely South African and non-negotiable. A Cloud PBX system is only as reliable as your internet connection and power supply. The best providers offer automatic failover to mobile numbers during outages, UPS-backed infrastructure, and the ability to take calls via a mobile app on cellular data. United Telecoms includes mobile app failover as standard. If a provider can't clearly explain what happens to your calls during Stage 4, walk away.
Several SA Cloud PBX providers still push 24-month contracts. 3CX, NoPBX and Microsoft Teams Phone all offer month-to-month billing. The general rule: if a provider needs to lock you into a long contract, they're not confident you'll stay voluntarily. Month-to-month costs slightly more upfront but gives you the freedom to switch if service deteriorates. If you do sign a contract, negotiate a 30-day exit clause for sustained SLA breaches.
Every Cloud PBX provider will show you a feature list as long as your arm. The features that actually matter for most SA businesses: IVR (auto attendant), call recording, voicemail-to-email, ring groups/hunt lists, and a mobile app. Everything else — CRM integration, call centre wallboards, API access, AI transcription — is genuinely useful only if your workflow demands it. A 5-person law firm doesn't need call centre wallboards. A 50-seat sales floor does. Match features to reality, not aspiration.
Most reputable Cloud PBX providers offer a free trial or pilot period. Use it. Test call quality during peak hours (10am–12pm is SA's busiest calling window). Test the mobile app during load shedding. Call their support line at 4pm on a Friday. If they can't handle you as a prospect, they won't handle you as a customer. WhichVoIP's provider reviews include real customer feedback on support response times — check those before committing.
Any provider offering voice services in South Africa must hold an ICASA Electronic Communications Network Service (ECNS) and Electronic Communications Service (ECS) licence. Operating without one is illegal, and if a dispute arises, you'll have no regulatory recourse. Every provider listed on WhichVoIP has been verified as ICASA-licensed. If you're evaluating a provider not on our platform, ask for their licence number and verify it on the ICASA website.
WhichVoIP's ratings are calculated using a weighted scoring model across five dimensions. Every provider is evaluated using the same criteria, and no provider can pay for a higher ranking or preferential placement. Our revenue comes from connecting businesses with providers — not from providers buying visibility.
Ratings are updated monthly based on new review data, pricing changes, and feature updates. The "Last Updated" date at the top of this page reflects the most recent review cycle. Unlike provider-run comparison pages that conveniently rank their own products first, WhichVoIP is editorially independent — we have been since 2009.
