Unified Communications Provider Melbourne
One system. One partner. Zero runaround.
Your phones shouldn’t drop out.
Your team shouldn’t juggle apps.
And you shouldn’t be stuck calling three vendors when something breaks.
Prosum designs, installs and supports your entire phone and communications setup — so everything just works.
Cloud or on-prem. Office or remote. One number to call.
Book a Free System Review
Choose the setup that fits your business
Cloud Phone Systems
Modern, flexible VoIP that lets your team call, chat, meet and collaborate from anywhere.
Perfect for growing teams and hybrid work.
On-Premises Phone Systems
Prefer full control on site? We design and maintain secure, business-grade systems installed at your premises.
Reliable, stable and built to last.
Cordless & Wireless Phones
Stay connected across warehouses, retail floors and large sites without being tied to a desk.
SIP Trunks
Reduce call costs and improve clarity with reliable internet-based calling.
13, 1300 & 1800 Inbound Numbers
Make it easy for customers to reach you with professional national numbers.
Why businesses switch to Prosum
Because we don’t just sell phone systems — we own the outcome.
- Everything is managed under one roof
- Local Aussie support team
- Direct access to real technicians
- Seamless integrations
- No finger-pointing between vendors
You make one call. We fix it.
Built for businesses that rely on their phones
If your team can’t work when phones or the internet go down, you need more than a provider.
You need a partner.
For 25+ years, Prosum has helped Australian businesses stay connected, productive and supported — without the telco headaches.
