Large Business PBX/PABX


New Large Business Phone Systems

31 – 201+ User systems

“Efficient, scalable and cost effective, everything you need and want in a large telecoms solution”

United Telecoms supplies industry leading large PABX telephone systems to a wide variety of end users, our solutions experts will assist you in designing and implementing one single unified telephone system that addresses the unique needs of your organisation. Whether it be multiple sites or a single large site.

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What to Consider When Purchasing a Large PABX/PBX Office Phone System

Which Large Business Phone System is Right for You?

There is a myriad of office phone PBX solutions both brands, (AvayaNECMitelSamsung). When thinking about how to proceed it is best to design what outcome you wish to achieve at the conclusion of the project and then use this as the framework to decide on the correct brand and type of PABX deployment that will achieve this outcome.

Every organisation and its internal interactions are unique, and therefore each organisation requires a custom PBX telephone solution. Once the solution has been built we will sit with you and customise for cost and feature purposes, adding and subtracting those features which are critical and ensuring we get the correct blend of PBX features vs cost.

Have You Asked These Questions?

  • Is the solution for a single physical location or multiple locations?
  • What connectivity is available to run services such as VOIP and Video Conferencing?
  • How many users would need BYOD device connectivity or mobile office connectivity?
  • Is call centre functionality required?
  • Do you require a hosted solution or on-premise solution?
  • Telephone management reporting, what will be required?

Once we have a more defined picture of your desired outcome a quote is quickly put together.

Purchasing Options

There are 2 main options when looking to purchase a new or refurbished PABX/PBX phone solution from any vendor:

Outright Purchase or Monthly Rental.

As a PABX phone system is an IT based product we recommend to our clients that they rent the units.  This allows for a smooth capital expenditure, and a fixed monthly operating expense ensuring your business is never without the best solution at the given time. Cash PABX purchase is welcome and you can discuss the payment terms with your account manager.

Other Important Factors to Consider

Cabling: Before installing one needs to ensure that the areas requiring phones are correctly cabled, cabling is a separate cost and needs to be quoted for on any large PBX Business system.

Location: Your location is important, certain areas in South Africa do not have access to the infrastructure required to run VOIP solutions, in these cases we look at Telkom, Neotel or GSM premicell solutions. Remember there is always a connectivity option it just needs to be customised to your location, budget and needs.

  Handsets: Telephone Systems come in 3 basic types:

  • Analog – Require telephone Cat 3 cable and are the cheapest, most basic type of phone. They are extremely reliable and offer basic transfer and call hold features
  • Digital – Digital handsets have slightly more features and functionality than a traditional analogue handset, including Incoming caller identification, handling of 2 or more calls simultaneously, speaker and conference facilities and more. They also run on analogue Cat 3 telephone cabling and
  • IP – IP handsets run on Cat 5 computer cabling, they have all the features of the above unit and more. Traditionally one usually has either and all IP PABX solution or an analogue/digital phone solution. IP phones are great for future-proofing your business and creating a unified communication system.

View our guide to selecting a PBX telephone system for more information.

Got questions? Contact our experts today.


We service the following locations across London and the United Kingdom

Greater London: City of London, Hounslow, Barking and Dagenham, Islington, Barnet, Kensington and Chelsea, Bexley, Kingston upon Thames, Brent, Lambeth, Bromley, Lewisham, Camden, Merton Croydon, Newham, Ealing, Redbridge, Enfield, Richmond upon Thames, Greenwich, Southwark, Hackney, Sutton, Hammersmith and Fulham, Tower Hamlets, Haringey, Waltham Forest, Harrow, Wandsworth, Havering, Westminster and Hillingdon.

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


Get In Touch

London Office

1 Vanderbilt Road
SW18 3BG
United Kingdom (UK)

Tel: 020 3399 8011


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