Communication Systems & Services

At the heart of every successful business is reliable communication

Prosum can help you connect your team and customers simply and securely, wherever they are, in the ways that work for you. Our highly skilled in-house experts can design and deliver world-class technology solutions from leading brands such as Microsoft, Cisco and NEC.

Explore our communication & collaboration solutions

We've got what your business needs

MS Teams, Univerge Blue Connect & Cisco Webex

We can help you connect your teams & customers simply & securely, wherever they are, in the ways that work for you.

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NEC On-premises Communication Platforms

Prosum is a trusted installer of NEC on-premises phone systems and can tailor a solution that’s just right for your business.

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SIP Trunks

Prosum’s reliable SIP Trunks keep your business PBX connected and call costs low.

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1300 & 1800 Inbound Numbers

No matter how your business operates, Prosum offers a wide range of inbound numbers are designed to work for you

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Cordless & Wireless Phone System Solutions

Empower your mobile workforce with Prosum's cordless & wireless solutions. Elevate mobility, productivity & customer service.

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Brands We Work With

Prosum is your one-stop shop for all your business communication and collaboration needs. 

Everything you need under one roof

From unified communications and customer engagement solutions to connectivity and ongoing support – we've got you covered. 

Simplicity and convenience

One provider, one account manager, and one monthly bill for phone, internet and 1300 & 1800 numbers. 

Competitive pricing

We provide a fixed quote guarantee for project work. Our Telco and implementation costs are 10-30% cheaper than our major competitors. 

Tailored solutions

We understand your business is unique. That’s why tailor solutions built on years of experience to remove your business pain points. 

All-around experts

We do more than phone systems, we bring unique skills that provide real value to your business. 

Fast response times

No voice menu and waiting on the phone for hours. You always engage with an expert to resolve your issues quickly and efficiently.  

Prosum is your one-stop shop for all your
business communication and collaboration needs.

100 +

Years+ of IT and telco experience

1500 +

Happy customers and counting

96 %

Of our customers have been with us over 5 years

100 %

Responded in within 15 minutes

Reach Out

Partner with an expert who cares about your success.

  • 25+ Years Going Strong
  • Award-Winning Support

Why Prosum

We've got the know-how to make every installation a success

We can’t think of any other Telco and IT providers in Australia that have the background and experience that we do to merge critical business infrastructure with the latest tech. This combination is very important, as it allows us to eliminate delays with carrier and installations, always ensure the correct products are chosen for the purpose, and resolve faults faster.

You’ll find a number of companies who claim they do Telco, but have adopted it as a side-arm of their business, and don’t have the deep knowledge of “how things are built” that make all our installations successful. Prosum are your one-stop-shop; a single company that can take responsibility for scoping, design, ordering, implementation, and post support, all within the one business.

Communications and collaborations FAQs  

Here’s a quick overview of cloud and on-premises phone systems.
Cloud telephony has the following advantages
  • Pay per month pricing. Lower upfront cost compared to on-premises phone systems
  • No equipment onsite
  • Maintenance and updates are built into the price
  • Work from anywhere and on any device is simplified
  • Better collaboration tools
On-premises has the following advantages 
  • Lower cost over time
  • Better at connecting analogue ports
  • Does not rely on the internet to keep on working
  • You have full control over your phone system
  • Highly customisable and reliable. 
Contact Prosum to discuss your needs and we can help you choose what’s best for your business. 
1800 Numbers are FREE for the caller to call from any landline and are a great way to attract more callers to your business.
1300 Numbers are charged at a local call rate to your caller and allow you to attract customers who live outside your local area – perfect for nationwide campaigns.
13 Numbers are easy-to-remember six-digit numbers charged at a local call rate to your caller.
Yes, we do. Contact Prosum.
We are not a volume business that needs to capture continuous sales. We pride our business on providing our customers with the best value technology and support.
Many customers choose us because they are treated poorly by larger carriers. As a small business, we are more cost-effective - we can provide better support and we genuinely want the very best for your business.
The easiest and quickest way to get our support is by emailing our support team at or if it’s urgent please call 0396972222. Our help desk is manned Monday to Friday 9 am to 5 pm with on-call technicians all other times.

1500+ Happy Customers & Counting

We needed an experienced ICT VoIP provider that could implement a new telephony solution without affecting existing telephony services and business operations. After reviewing other providers, we selected PROSUM who was able to successfully migrate all our users onto the new NEC platform and complete the project in a timely manner. PROSUM continue to provide support for our NEC Telephony and Contact Centre environment and I would recommend their services to other organisations and enterprises.

Andrew Trinh,


We are constantly looking to continuously improve the way we do business and service our customers and distributors within our customer service operations. This is why we selected PROSUM as our telephony and contact centre provider. Their experience means we have a VoIP provider we can rely on to provide and maintain our telephony and contact centre environment.

Therese Chakour-West,


Aitken Real Estate had to move office and sought David Colletta of Prosum advice about switching our telephony to the cloud. Extremely helpful, no-nonsense information and can get the job done. Their tech Antoine was sensational. No delays, no problems. Highly recommend!

Stephen Aitken,


Thanks to the PROSUM team for the successful migration of the Brisbane phone system. A great deal of planning and hard work in the preparation resulted in a smooth migration with zero downtime to the business – a reflection on the dedication and preparedness to the project. Thank you.

Raphael Cheah,

Network Administrator - AECOM
Not sure what internet service is available at your business address?

Connect with one of our internet specialists for a free consultation, and we’ll match the best technology available in your area.

Talk to us today about how Prosum can help you with all your business tech and communication solutions