Interworks — business fibre and VoIP from Fisantekraal, Cape Town
Interworks Wireless Solutions sells fibre, wireless and VoIP from Fisantekraal in Cape Town. It resells across Frogfoot, Octotel, Openserve and Vumatel and does something most resellers avoid: it publishes the line rental and the data charge as separate figures, so you can see exactly what it adds on top of the network operator’s cost.
Key facts
| Who they are | Interworks Wireless Solutions (Pty) Ltd, a Cape Town ISP selling residential and small-business fibre, wireless and VoIP. |
| Published pricing — itemised | Frogfoot residential runs from R806/month for 60/30 Mbps through R985 for 120/120, R1,232 for 240/240 and R1,321 for 400/200. Unusually, Interworks splits the figure into the Frogfoot line rental and its own uncapped data charge, and states the line rental is its direct cost from Frogfoot. |
| Business fibre | Small-business fibre from R1,844/month, plus FTTB packages across Octotel, Openserve and Vumatel, and its own FibreWave product for faster delivery. |
| Voice | Business VoIP with free on-net calls and a mobile app included. Number porting is handled in-house — the company runs a dedicated porting address. |
| Head office | Industrial Park, 20 Stillewater Street, Fisantekraal, Cape Town, 7550 |
| Support | Monday to Friday 08:00–17:00, with Saturday and Sunday support windows — weekend cover most resellers this size do not offer. |
| Listed In | Fibre Internet Providers |
Price transparency you can actually check
Splitting the bill into line rental and data is a small thing that tells you a lot. Most resellers quote one blended monthly number, which makes it impossible to see what margin sits on top of the network operator’s wholesale price. Interworks publishes both halves and says plainly that the line rental is its direct cost from Frogfoot, so you can compare its markup against any other reseller on the same network. Combined with in-house porting and weekend support hours, that is a small-ISP proposition built on being checkable rather than cheapest.
Who Interworks is a fit for
- Cape Town businesses wanting fibre and phones from one local supplier with weekend support
- Buyers who want to see the line-rental and data components priced separately
- Offices porting existing numbers who want the porting handled in-house
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Compare phone systems →Commonly asked questions
What does Interworks fibre cost?
Frogfoot residential packages run from about R806 a month for 60/30 Mbps up to R1,321 for 400/200, with the line rental and data charge shown separately. Small-business fibre starts around R1,844 a month.
Which fibre networks does Interworks use?
Frogfoot, Octotel, Openserve and Vumatel for residential and business, plus its own FibreWave product.
Why are the prices split into two numbers?
Because one is the network operator’s line rental, which Interworks states is its direct cost, and the other is its own uncapped data charge. It lets you see the markup.
Can I keep my phone number?
Yes. Interworks handles number porting in-house and runs a dedicated porting contact for it.
Where is Interworks based?
Industrial Park, 20 Stillewater Street, Fisantekraal, Cape Town.
Is support available at weekends?
Yes. Weekdays 08:00–17:00 with Saturday and Sunday support windows, which is unusual at this size.
This listing is maintained by WhichVoIP, an independent South African telecoms comparison service running since 2019. Details are verified against the provider’s public website and were last reviewed on 1 August 2026.