Australia's Business Phone System Specialists

Finding your ideal business phone system is easy with us. We compare prices from top brands and trusted suppliers, offering close-to-wholesale deals to save you time and money. Ready to get started?

Get Your Quote Now

Easily compare quotes for Hosted, Cloud, VoIP & NBN-ready phone system in just a few clicks.

Start by filling out our quick and simple form. We’ll call you back within 30 minutes during our business hours (Monday through Friday, 9 am to 5 pm) to discuss your phone system wishlist.

Step 1 of 4

Which best describes your phone system needs?*

Find the Perfect Phone System for Your Business in 3 Simple Steps

1. Tell us what you need

Share your wish list with us and tell us what you're looking for in a phone system.

2. We're on it

We'll do the legwork to find you options that match your needs perfectly.

3. You decide

Compare your options stress-free and choose the system that's just right for you.

Top Brands That We Offer

Why a Business Telephone System with Prosum?

Expert Selection

We take the guesswork out of choosing your phone system by recommending the perfect fit for your business needs.

Save Time, Skip the Hassle

Say goodbye to endless comparisons. With us, you'll save both time and money, dealing with just one provider for all your needs.

Direct Savings

Cut out the middleman and enjoy next-to-wholesale pricing directly from leading distributors, saving you significant costs.

Quality Guaranteed

Experience top-quality phone systems without any compromise, empowering your business with reliable tools.

Australian Support

Our Aussie-based team provides personalized support throughout your journey, ensuring a smooth and tailored experience.

Trusted Experience

With over 25 years in the industry, we're your trusted telco partner, delivering solutions backed by extensive expertise.

Read What Our Clients Say About Us

I recently had a new VC installed from the team at Prosum. David Colletta and his team were not only professional with the installation, but at all times, the communication was second to none from them to see at each step where we were at. The installers were brilliant, and to top it off, they cleaned after the installation leaving us nothing to do. How refreshing this was. Again, I cannot speak highly enough of the team at Prosum; their professionalism was second to none, and their on-time approach was exactly that on time! Please do yourself a favour and get the team out there to look at what your needs are for the business, big or small. They have it all! Well done and thank you.

Yolanda Di Ludovico,


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

Frequently Asked Questions

If required, yes we can help. We sell, install and maintain phone systems and can provide comprehensive support for your business.
No, our systems are designed for smooth integration into your existing workflows, enhancing productivity without any disruption.
We test all options thoroughly before presenting them to you, guaranteeing the best fit for your needs. Unlike other providers who may offer only one choice, we prioritize offering options that truly match what you're looking for.
We're are a Victorian Police Security Business and we're proud members of the Australian Cyber Security network. Major brands in Australia have relied on us for over 25 years.
Prosum is an Australian-owned and operated IT and Telecommunications company based in Melbourne, Australia, serving customers nationwide.
At Prosum, we understand the challenges Aussie businesses face. That's why we compare prices from top brands to offer you near-wholesale deals, ensuring you get great value. We provide cost-effective and flexible hosted, cloud, VoIP and NBN ready phone solutions that can grow with your business. Thanks to our strong connections with top Australian suppliers, we can offer you excellent pricing.
In addition to telecommunications, we offer a range of IT services including end-to-end setup for your internet and network requirements. Our engineers are Cisco certified and also possess MS competencies to ensure comprehensive and reliable service.
You can get started by contacting us through our website or giving us a call on 1800 007 229. Our team will be happy to discuss your needs and how we can help.