Medium Business Phone Systems in South Africa

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State-of-the-art PBX phone systems for medium-sized businesses

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Shop UVC-hosted PBX phone systems

South Africa’s premier cloud PBX platform designed for growing businesses. United Voice Cloud delivers enterprise-grade VoIP functionality with no hardware required, offering flexible packages, low call rates, and seamless scalability. Explore our full UVC range or view featured systems below.

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United Voice Cloud Classic Hosted PBX

United Voice Cloud Classic Hosted PBX

R 99.00 incl VAT

United Voice Cloud™ is a leading customizable Hosted PBX system, encompassing the latest in unified communications technology with the ultimate in flexibility and reliability… Read More

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United Voice Cloud Landline Solution

United Voice Cloud Landline Solution

R 155.00 incl VAT

United Voice Cloud™ is a leading customizable Hosted PBX system, encompassing the latest in unified communications technology with the ultimate in flexibility and reliability… Read More

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United Voice Pro B2B VoIP Package (9 - 15 VoIP Phone Lines)

United Voice Pro B2B VoIP Package (9 – 15 VoIP Phone Lines)

R 1,219.00 incl VAT

United Voice is our Business Telephone Line VoIP solution which makes use of innovative VoIP technology to transmit crystal clear voice calls over a broadband data connection… Read More

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Shop Yeastar medium-sized business phone systems

An innovative Chinese brand making enterprise-grade unified communications accessible to medium-sized businesses. Yeastar’s range includes the S and P series, which offer flexible cloud and on-premises deployment, advanced VoIP functionality, and seamless third-party integration. Explore our full Yeastar range or view featured systems below.

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Yeastar S100 VoIP PBX Phone System

Yeastar S100 VoIP PBX Phone System

SKU: YR-S100

R14,299.00 incl VAT

The Yeastar S100 IP PABX is easy to use, reliable, and feature-rich. The S100 PBX is designed to help medium and large businesses… Read More

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Yeastar YR-P560

Yeastar YR-P560 PBX System

 

SKU: YR-P560

R 16,249.00 incl VAT

The Yeastar P560 IP-PBX is a powerful and scalable communication solution designed to support the growing needs of businesses… Read More

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Shop Avaya medium-sized business phone systems

A leading U.S. communications brand offering cloud, hybrid, and on-premise PBX solutions. Avaya’s IP Office and Cloud Office systems deliver scalable, reliable telephony for medium-sized businesses, combining enterprise-grade performance with flexible deployment options. Explore our full Avaya range or view featured systems below.

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Avaya IP Office PABX Phone System

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Transform the way you conduct business by creating a seamless engagement experience for your customers and employees… Read More

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Avaya IP Office 500 v2 PBX Phone System

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Transform the way you conduct business by creating a seamless engagement experience for your customers and employees… Read More

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Shop NEC medium-sized business phone systems

A trusted Japanese brand renowned for delivering reliable and scalable PBX communication systems. NEC’s SL and SV series offer advanced VoIP, hybrid, and digital telephony designed to meet the needs of growing medium-sized businesses. Explore our full NEC range or view featured systems below.

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NEC SL2100 VoIP PABX Phone System

NEC SL2100 VoIP PABX Phone System

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The NEC SL2100 IP PABX is highly cost effective because there’s more built-in with this phone system. With VoIP capabilities… Read More

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NEC SL2100 VoIP PABX Bundle (4 Lines) Small to Med Office Phone System

Shop Panasonic medium-sized VoIP phone systems

Renowned for innovation and reliability, Panasonic is a Japanese brand offering advanced hybrid IP communication systems. The KX-NS and KX-TDA series provide scalable, feature-rich telephony for medium-sized businesses, supporting both IP and digital extensions. Explore our full Panasonic range or view featured systems below.

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Panasonic KX-NS500 PABX Switchboard Telephone System

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The Panasonic PABX System, the Panasonic KX-NS500 is a high quality, smart hybrid PBX, a reliable unified communication office phone system… Read More

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Panasonic KX-TDA100 Hybrid VoIP PBX Phone System

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Shop Samsung medium-sized VoIP phone systems

A respected South Korean brand offering powerful hybrid telephony solutions. Samsung’s OfficeServ series delivers robust digital and IP capabilities tailored for medium-sized businesses, combining flexibility, scalability, and dependable performance. Explore our full Samsung range or view featured systems below.

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Samsung OfficeServ 7200 PABX/PBX Phone System

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Perfect for small-to-midsized businesses with up to 128 phones. As a completely converged platform, OfficeServ 7200 supports both voice and data communication with… Read More

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Samsung OfficeServ 7400 Enterprise IP PABX/PBX Phone System

Samsung OfficeServ 7400 Enterprise IP PABX/PBX Phone System

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Supporting up to 480 phones in a single site or thousands of users in a multisite network, this robust communication platform keeps everyone and everything connected with true convergence… Read More

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Got questions? Contact our experts today.

CONTACT THE EXPERTS GET A QUOTE

We service the following locations in South Africa

Western Cape: Cape Town, Belville, Paarl, Stellenbosch, Somerset West, Vredendal, Hout Bay, Green Point, Bloubergstrand, Durbanville, Melkbosstrand.
Eastern Cape: Port Elizabeth, Knysna, East London, George.
Kwa-Zulu Natal: Durban, Pinetown, Ladysmith, Newcastle, Ballito, Port Shepstone, Pietermaritzburg, Umhlanga, Westville, Hillcrest, Amanzimtoti.
Gauteng: Johannesburg, Vereeniging/Vaal, Sandton, Midrand, Pretoria, Centurion, Randburg, Roodepoort, Germiston, Alberton, Edenvale, Menlo Park.
Free State: Bloemfontein, Welkom, Bethlehem.
Mpumalanga: Witbank, Nelspruit.
Northern Cape: De Aar, Kimberley, Repra (Upington Area).
North West: Klerksdorp, Mafikeng.
Limpopo: Phalaborwa, Polokwane/Pietersburg.
Outside South Africa: Botswana, Zimbabwe, Swaziland, Namibia, Mozambique.

Get In Touch

Head Office

19 Trinity Close
Cambridge Commercial Park
Paulshof
Sandton

Tel: 086 001 8500

Email:  info@unitedtelecoms.net

6 Edison Way
Century City
Cape Town

Tel: 086 001 8500

Email:  info@unitedtelecoms.net

12 Sookhai Place
Derby Downs Office Park
Westville

Tel: 086 001 8500

Email:  info@unitedtelecoms.net

What Our Customers Say

“Once we approved the installations we were kept up to date daily with the levels of progress on our various sites and were very impressed with the final installation”

Spear Properties

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Frequently Asked Questions About Medium-sized PBX Phone Systems

The cost of a medium PBX phone system depends on your preferred setup—on-premise, hybrid, or cloud-hosted.

Mid-range on-premise systems typically range from R15,000 to R60,000, supporting 50 to 200 users with reliable performance and essential business features. Suppliers generally offer flexible payment structures, including outright purchase for full ownership or rental agreements that spread costs over time.

Cloud-hosted PBX solutions generally cost between R80 and R350 per user per month, depending on feature requirements, integrations, and service-level agreements. This model offers predictable monthly expenses and eliminates the need for upfront hardware investment. In a related article, we explore factors that influence the cost of PBX phone systems in South Africa.

United Telecoms helps medium-sized businesses identify the right communication system across our range of trusted brands, including Avaya, NEC, Panasonic, Samsung, and Yeastar. We offer both purchase and rental options, from 12 to 60 months, along with our United Voice Cloud platform starting at R65 per user per month.

Contact us today for a free consultation and transparent pricing tailored to your business needs.

Modern medium-sized business PBX systems offer a wide range of advanced features to improve communication, collaboration, and operational efficiency. These systems combine traditional telephony with powerful communication tools that support in-office and remote teams.

Key features include auto-attendants and interactive voice response (IVR) for smart call routing, call forwarding to ensure no call is missed, voicemail-to-email for convenient message access, and call recording for compliance. Many systems integrate with popular CRM systems to streamline customer interactions and improve service levels. Unified communications brings together instant messaging, video conferencing, mobile apps, and desk phones, keeping teams connected across locations and devices.

With VoIP and SIP trunking, businesses benefit from high-quality voice calls over the internet, reduced call costs, and reliable performance across multiple sites.

United Telecoms will help your medium-sized business identify the modern features that matter most. Whether you need essential call management or advanced collaboration tools, we’ll tailor your system to boost productivity and enhance customer experience.

Contact us today to discuss the features that will best support your business operations and growth.

Medium-sized PBX phone systems are available through telecommunications specialists, IT resellers, and online retailers, each offering different benefits like competitive pricing, technical expertise, and after-sales support.

Cloud-based PBX systems are typically purchased directly from providers on a subscription basis, while on-premise systems require working with suppliers who provide hardware, installation, and ongoing maintenance.

When choosing a supplier, consider their experience with medium-sized businesses, the range of available brands, local support, and scalability as your business grows.

United Telecoms has been providing reliable PBX solutions to South African businesses since 1985. We offer a wide range of products from trusted brands such as Avaya, NEC, Panasonic, Yeastar, and our own United Voice Cloud platform. Our services include expert consultation, professional installation, staff training, and nationwide technical support.

Contact us online or call 086 001 8500 to get the perfect PBX system for your medium-sized business.

In most cases, your business can retain existing phone numbers when moving to a new PBX or VoIP system.

This process, called number porting, ensures that your current numbers remain active across all users and locations, preventing disruptions for customers. Both geographic and non-geographic numbers can usually be transferred, provided they meet the porting requirements of your new service provider.

United Telecoms handles the full number porting process for you, ensuring a smooth transition with minimal downtime. Whether you’re upgrading to cloud, hybrid, or on-premise telephony, we’ll help you keep your existing numbers and set up any new extensions you require.

Contact us to confirm number porting options for your business.

Medium-sized PBX systems provide greater capacity, enhanced features, and increased flexibility compared to solutions designed for small businesses.

While small businesses may rely on basic or virtual phone systems, medium-sized organisations typically require multi-site support, higher call volumes, unified communications, CRM integrations, and robust redundancy for reliable performance. These systems are designed to scale and support growing teams without compromising efficiency or uptime.

 

As a leading provider, United Telecoms helps businesses choose the right system for their size and structure. If you’re comparing options, start with our guide to PBX phone systems to find the setup that best aligns with your communication needs.

Contact us for tailored recommendations.

Many medium-sized businesses still operate legacy PBX systems from brands such as Avaya, Panasonic, NEC, and Samsung. Although these manufacturers have exited the PBX market, thousands of their systems remain in use across South Africa, with organisations seeking repair parts, expansion modules, or complete replacement solutions.

Once these systems reach end-of-life, upgrading becomes essential to maintain reliability, security, and compatibility with modern communication tools.

For companies replacing on-premises systems, Yeastar has become the global leader in modern, scalable PBX technology. Their S-Series and P-Series platforms deliver advanced VoIP functionality, unified communications, CRM integrations, SIP trunking, and smooth migration paths from older hardware.

United Telecoms can assess your existing setup, determine whether repair is still viable, and recommend the most suitable replacement options to ensure long-term performance and stability.

Contact us to explore the best upgrade path for your legacy PBX system.