Products
Innovative & cost-effective communications solutions tailored to your business needs

On-Premises Phone Systems
We’ve partnered with NEC to empower your business with cost-effective premises-based phone & UC solutions.
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Cloud Phone Systems
Retire your ageing, expensive PBX and change the way you work with a Cloud Phone System. Plans & Pricing.

SIP Trunks
The smart & cost-effective alternative to ISDN that keeps your current PBX Phone System working. Plans & Pricing.

Inbound Numbers
Broaden your business reach and take control with our 1300 & 1800 Inbound Number services.
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Contact Centres
Bring your customers closer to your business with a tailored Enghouse Contact Centre solution.
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Business-Grade Internet
Prosum’s business internet is delivered over high-performance fibre & business NBN Broadband.
Why Partner with Prosum?
We're Experts At What We Do
- 20+ years of experience designing, installing, servicing and maintaining a range of ICT solutions.
- There’s no outsourcing. We have a diverse range of in-house skilled & certified technicians.
One-Point of Contact
- Tailored solutions delivered with the peace of mind of using a single provider.
- From the first contact through to ongoing technical support, we’re with you every step of the way.
We're Always Ready To Help
- Businesses of all sizes
- Across all industries
- Melbourne & Australia wide.
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We conducted a review for potential VOIP providers that could implement a reliable and feature rich cloud based IP Telephony platform. After reviewing other providers, we selected PROSUM who was able to successfully transition our College to a Cloud IP Telephony platform. PROSUM’s expertise is of the highest standard and I have no issues in recommending their solutions and services. Staff are particularly impressed with the high quality audio afforded by the HD handsets and due to the outstanding clarity, wonder if the other party is still there as there is no ‘pops’ or ‘clicks’ on the line.
STUART McMINN, IT MANAGER, - UNIVERSITY COLLEGE