Business Phone Systems Built for Gauteng
Black Tie VoIP supplies Johannesburg businesses with landline numbers, Cloud PBX, and SIP trunking — all on true per-second billing, with no long-term contracts. Whether you’re a single-line startup in Rosebank or a multi-branch operation spanning Sandton, Midrand, and the East Rand, we’ll get you set up and talking within days.
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What We Provide in Johannesburg
Landline Numbers
Choose a Johannesburg geographic number (010, 011, 012) or a national 087 number, provisioned in the cloud in under 30 minutes. Port your existing Telkom number across at no cost to you.
Cloud PBX
Run multiple extensions across multiple Johannesburg offices on a single number. Includes custom IVR, call transfer, music-on-hold, hot-desking, follow-me, and conferencing — all managed from a single online dashboard.
SIP Trunking
Unlimited concurrency SIP trunks with your own Trunk Management System portal, integrated billing, and true per-second rates for local, national, and international calls.
Mobile VoIP App
Take your Johannesburg business number with you. Available on Android now, with iPhone users set up via the free 3CX app.
Why Johannesburg Businesses Choose Black Tie VoIP
- No contracts — cancel anytime, no penalties
- True per-second billing from the first second, on every call
- Free on-net calling between all Black Tie VoIP numbers, nationwide
- Free remote support for setup and troubleshooting
- Local Johannesburg number (010 1400 849) with a real person on the other end
Serving Greater Johannesburg
We provision and support businesses across Sandton, Rosebank, Randburg, Midrand, Fourways, the Johannesburg CBD, and the East Rand. If you’re on fibre or LTE anywhere in the metro, we can get you connected.
Simple, Transparent Pricing
| Package | Price | Includes |
| Single User | R60/pm excl. VAT | 1 concurrent call, instant activation, no contract |
| Cloud PBX Extension | R99/pm per extension excl. VAT | Unlimited concurrent calls, full PBX features |
Minute bundles from 150 to 1000 minutes per month are available with roll-over on the 300+ tiers. Full package details on the order page.
Frequently Asked Questions
How quickly can I get a Johannesburg VoIP number?
Most accounts are provisioned within 30 minutes of signing up. Number porting from an existing provider typically takes a few business days.
Can I keep my current Johannesburg landline number?
Yes — we handle the porting process for you at no charge. Your number stays the same; only the underlying technology changes.
Do you offer support if something goes wrong?
Yes. Setup support is free, and our support desk is based in South Africa — no offshore call centres.
Is there a minimum contract term?
No. All packages are month-to-month with no cancellation penalties.
Black Tie VoIP is a South African provider of business VoIP, landline, and connectivity services, with local support for businesses across Johannesburg, Cape Town, and Durban.
