STM Group — cloud PBX and VoIP provider in South Africa
STM Group, trading as STM-Communication, is a Brakpan telecoms company on Bekker Street in Dalview selling VoIP, SMS services, call centre management and voice logging to South African businesses. The company pairs the voice line with data, cloud storage, CCTV and printer solutions, so a single supplier covers the phone system and much of the office technology around it. Its Google profile carries a 4.8 rating from twenty reviewers, most of them naming setup help and response times.
Key facts
| Who they are | An East Rand telecoms and office-technology company selling business VoIP alongside call centre management, voice recording and data services |
| Voice services | VoIP calling, SMS delivery, call centre management and the Actinium voice logger for recording and archiving calls |
| Also offers | Data connectivity, cloud storage, CCTV, interactive whiteboards and printer solutions |
| Head office | 37 Bekker Street, Dalview, Brakpan, 1541, Gauteng |
| Coverage | South Africa, with the company describing itself as local with global reach. No suburb-level footprint is published |
| ICASA licence | No ICASA reference is published on the site. That is normal for a reseller-model voice provider and is not a quality signal on its own, but ask for the licence position in writing if procurement needs it recorded |
| Pricing | Quote-based. STM Group publishes no rate card, so the monthly figure depends on extension count, recording retention and which non-voice services are bundled in |
| Listed In | Cloud PBX Providers |
Voice recording is the differentiator here
Most South African VoIP resellers stop at extensions and call rates. STM Group sells the Actinium voice logger as a named product, which puts call recording and archiving at the centre of the offer rather than treating it as a paid extra. That matters for a debt collection floor, a financial services desk or anyone who has to produce a recording months after a disputed call. Because the platform is cloud-delivered, the real coverage question is the quality of the internet line at each site, not the distance from Brakpan. Ask what happens to recording when a branch line drops and where the archives physically sit. Other options are in the cloud PBX directory.
Who STM Group is a fit for
- Call centres and collections desks that need recorded, retrievable calls
- East Rand businesses wanting one supplier for voice, data and office hardware
- Companies replacing a legacy PABX where voice logging is a compliance requirement
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A useful STM Group quote starts with the number of extensions and how many of them are agent seats. Say whether every call must be recorded or only a subset, how long recordings need to be kept, whether you need SMS delivery from the same platform, and how many sites are involved.
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Compare Cloud PBX providers →Commonly asked questions
What is the Actinium voice logger?
It is the call recording and archiving product STM Group sells alongside its VoIP service. The logger captures calls so they can be retrieved later, which is what a business needs when a customer disputes what was agreed on a call. Ask how long recordings are retained and how they are exported.
Does STM Group handle call centres as well as ordinary office phones?
Yes. Call centre management is listed as a distinct service, separate from the general VoIP offering, which suggests agent-seat work rather than only desk extensions. Confirm concurrency limits and reporting before committing seats.
Where is STM Group based?
The company operates from 37 Bekker Street in Dalview, Brakpan, on the Gauteng East Rand. Cloud voice does not require a supplier near your office, but proximity matters if you want on-site help with handsets and cabling.
What does STM Group charge?
No rate card is published. Pricing depends on how many extensions you run, whether call recording is included, and what data or hardware is bundled. Ask for the monthly total including the recording licence, not just the per-extension rate.
Is STM Group licensed by ICASA?
The site publishes no ICASA reference. Many smaller South African voice providers operate on a licensed partner network rather than holding their own licence, which is legitimate. Request the position in writing if your procurement process requires it.
What happens to my phones if the internet goes down?
Cloud voice depends on the internet line at each site, so a line failure takes the extensions with it. The practical answer is a second connection or a divert rule to mobile numbers. Ask what failover STM Group configures by default and whether it costs extra.
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 28 July 2026.