Business Communications Products & Solutions

  • On-Premises Phone Systems

    On-Premises Phone Systems

    We’ve partnered with NEC to empower your business with a range of cost-effective premises-based phone & UC solutions.

  • Cloud Phone System

    Cloud Phone System

    Prefer zero-touch telephony? Then our low-cost cloud-based phone system is the perfect solution for your business.

  • Cloud SIP

    Cloud SIP

    Prosum’s Cloud SIP Trunks are a smart and cost-effective way to connect your current PBX or MS Teams phone system to the PSTN.

  • Inbound Numbers

    Inbound Numbers

    Broaden your business reach and take control with our 1300 & 1800 Inbound Number services.

  • Contact Centres

    Contact Centres

    Bring your customers closer to your business with a tailored Enghouse Contact Centre solution.

  • Business-Grade Internet

    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.

Not sure if we're the right fit for your business?

Contact us today for a free, no-obligation consultation.

1800 007 229

  • 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.