ASG — cloud PBX and managed IT provider in Kempton Park, South Africa
ASG IT Support Services has run out of Kempton Park since 1988, which makes it one of the longer-standing managed IT businesses in Gauteng. Cloud PBX sits inside a wider outsourced-IT contract rather than being sold on its own, and the company is certified on both Yeastar and 3CX. It publishes what its support contracts actually cost, which is rare enough in this market to be worth noting, and holds a B-BBEE Level 2 rating.
Key facts
| Who they are | ASG IT Support Services, a Kempton Park managed IT company trading since 1988. It runs outsourced IT departments for South African businesses, with cloud PBX and connectivity sold as part of that contract rather than as standalone products |
| Voice services | Cloud and hosted PBX, VoIP handsets and cloud phone systems. The company states Yeastar and 3CX certification, so expect one of those two platforms rather than an in-house one |
| Also offers | Managed IT support and remote support, server and desktop support, managed security and firewalls, monitored backups, network cabling and wireless networking, network audits, plus CCTV and access control |
| Connectivity | Fibre, LTE, wireless and ADSL are resold alongside the IT contract |
| Head office | Corner Monument and Dann Road, Glen Marais, Kempton Park, 1620, Gauteng. A second office operates from Unit 36, Sunninghill Office Park, Peltier Drive, Sunninghill |
| Coverage | Johannesburg, Pretoria, Centurion, Cape Town, Durban, Bloemfontein and Gqeberha are named as served locations |
| ICASA licence | No ICASA reference is published. Ask for it in writing if your procurement process records licence numbers |
| Pricing | The company publishes a range for its IT support contracts: R6,000 to R35,000 a month is what it says clients usually pay. That figure covers the managed IT contract, not a per-extension PBX price, so quote the voice element separately |
| Accreditations | Microsoft Gold Certified Partner, Sophos partner, and reseller relationships with Dell, HP, Lenovo, Cisco, ASUS, Acer, Canon and Epson. B-BBEE Level 2 |
| Listed In | Cloud PBX Providers |
The phone system arrives inside an IT contract
Buying voice from ASG is not the same transaction as buying it from a pure cloud PBX vendor. The company sells an outsourced IT department, and the phone system is one line item inside that, alongside the servers, the firewall, the backups and often the cabling and cameras too. For a business that already wants one supplier holding all of it, that is the whole appeal, and the published R6,000 to R35,000 monthly band tells you roughly where you would land. For a business that only wants a hosted PBX and nothing else, it is probably the wrong shape of deal. Because the platform is Yeastar or 3CX rather than something proprietary, the extensions, call flows and handsets behave the way those platforms normally do, and the internet line into each site remains the thing that decides call quality. Thirty-seven years of trading in the same market is the other thing worth weighing. Compare the wider market in the cloud PBX provider directory.
Who ASG is a fit for
- Gauteng businesses that want phones, servers, security and support on one contract
- Buyers who want a published price band before the first meeting
- Companies with a B-BBEE requirement on their supplier list
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Compare Cloud PBX providers →Commonly asked questions
How long has ASG been trading?
Since 1988. The company has operated from Kempton Park in Gauteng for its whole history and now also runs an office in Sunninghill.
What phone system platform does ASG use?
The company states certification on Yeastar and 3CX, so a cloud PBX from ASG will be built on one of those two rather than on a platform it wrote itself.
How much does ASG cost?
For IT support contracts the company publishes a band of R6,000 to R35,000 a month, describing that as what clients usually pay. Voice is normally quoted inside that contract, so ask for the phone system priced out as a separate line.
Does ASG only serve Gauteng?
No. Johannesburg, Pretoria and Centurion are the core, and the company also names Cape Town, Durban, Bloemfontein and Gqeberha among the areas it serves.
Can ASG supply the internet line as well as the phones?
Yes. Fibre, LTE, wireless and ADSL are resold as part of the contract, which matters for a cloud PBX because the line quality determines call quality.
Does ASG do more than IT and phones?
Yes. CCTV, access control, network cabling and structured wireless are all on the service list, which is why the company tends to suit buyers consolidating suppliers.
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 29 July 2026.