iSite Computers — VoIP and managed IT provider in Durban, South Africa
iSite Computers has run managed IT services out of Sherwood in Durban since 2008. Voice comes through an official 3CX partnership rather than a platform of its own, which sets clear expectations about how the phone system will behave. The rest of the contract covers backup and disaster recovery, security, cloud, and Microsoft 365 or Google Workspace, with proactive monitoring running around the clock behind a weekday helpdesk.
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Key facts
| Who they are | iSite Computers, a KwaZulu-Natal managed IT provider established in 2008 that runs outsourced IT for South African businesses, with VoIP delivered as an official 3CX partner |
| Voice services | VoIP built on 3CX. The company holds an official 3CX partnership, so extensions, call routing, mobile apps and reporting follow the standard 3CX feature set |
| Also offers | Managed IT services, data backup and disaster recovery, IT security, vendor management, proactive monitoring and maintenance, IT consulting and strategy, cloud computing, Microsoft 365 and Google Workspace, and web hosting and domains |
| Head office | Unit 4, Oakwood Office, Forest Office Park, 15 Summit Drive, Sherwood, Durban, 4091, KwaZulu-Natal |
| Coverage | National scope is indicated from a Durban base. No branch list is published, so confirm onsite response for any site outside greater Durban |
| Support hours | The helpdesk runs Monday to Friday 08:00 to 17:00, with monitoring and helpdesk cover advertised as 24/7/365. Establish in writing which faults qualify for after-hours attention |
| ICASA licence | No ICASA reference is published. Ask for it in writing if your procurement process records licence numbers |
| Pricing | Quote-based. No Rand figure is published for VoIP or for managed IT |
| Accreditations | Official 3CX partner, Microsoft Partner, Google Workspace partner, Dell Technologies Partner, Lenovo Business Partner, Sophos partner and Ubiquiti partner, with stated relationships to Liquid Telecom and Vodacom Business |
| Listed In | VoIP Providers |
A 3CX estate with the IT contract wrapped around it
The 3CX partnership is the most useful fact on this page, because it tells you exactly what you are buying before anyone quotes you. 3CX is a well-documented platform with a published feature set, so the questions worth asking are not about capability but about how iSite implements it: whether the PBX is hosted for you or sits on your own instance, which SIP trunk provider sits behind it, and who owns the numbers. Around that, the company sells a conventional managed IT contract, and the seventeen years of trading from one Durban base counts for something in a market with heavy churn. Two things to pin down. The support window is a weekday 08:00 to 17:00 desk with 24/7 monitoring advertised alongside it, and those are not the same commitment, so get the after-hours scope in writing. National coverage is claimed from a single published address, so establish what onsite response looks like outside greater Durban. Compare the wider market in the VoIP provider directory.
Who iSite Computers is a fit for
- KwaZulu-Natal businesses wanting phones and IT support from one Durban-based supplier
- Companies that specifically want 3CX rather than a proprietary hosted platform
- Buyers who value a long single-location trading record over a national brand
How iSite Computers sits in the VoIP category
- 264 verified VoIP providers on WhichVoIP; 171 carry a Google rating.
- Google 5.0 from 12 reviews — top 5% of rated providers in the category (7 rate higher).
- Category median is 37 reviews, so this is a smaller sample than most.
Computed from the WhichVoIP provider register; refreshes as ratings and reviews change.
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Compare VoIP providers →Commonly asked questions
How long has iSite Computers been operating?
The company was established in 2008 and works from Sherwood in Durban.
What VoIP platform does iSite Computers use?
iSite is an official 3CX partner, so the phone system is built on 3CX rather than on an in-house platform.
Is iSite Computers only in Durban?
The published address is in Sherwood, Durban, and national scope is indicated. There is no published branch list, so confirm onsite response times for sites outside greater Durban.
What are iSite Computers’s support hours?
The helpdesk runs Monday to Friday from 08:00 to 17:00, with monitoring and helpdesk cover advertised as 24/7/365. Ask which fault types qualify for after-hours attention.
What does iSite Computers charge?
No pricing is published for VoIP or managed IT. Everything is quoted, so ask for the phone system costed separately from the IT contract. For reference, the 8 verified VoIP providers on WhichVoIP that do publish prices charge R50–R499 per month for a line or SIP trunk, with calls billed per minute, so expect a quote in that band. Compare published prices or get up to 3 quotes.
Can iSite Computers handle Microsoft 365 as well as the phones?
Yes. Microsoft 365 and Google Workspace are both on the service list, alongside backup and disaster recovery, security, and cloud.
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.