Everything your business needs to get connected

Business Phone Systems

Tailored phone system solutions for all business needs & sizes, on your premises, or in the cloud.

  • New Phone Systems
  • Phone System Upgrades
  • Call Centre Phone Systems

Wide range of features

  • Audio & Video Conferencing
  • Contact Centre
  • Call Monitoring & Recording
  • Remote & Home Workers
  • Mobile & On the Road Workers

Business Internet

Boost your business performance with super-fast reliable business-grade internet.

  • Business-grade NBN
  • Business-grade fibre internet
  • Unlimited data
  • 99.95% service availability guarantee
  • 24/7/365 Australian support team

Business Phone Lines

Connect your onsite PBX to Prosum’s SIP trunks & save on communication costs.

  • Choice of flexible plans & pricing
  • Competitive call rates
  • No lock-in contracts

Inbound Numbers

Inbound number services

  • One phone number Australia-wide
  • Easy to remember phone numbers
  • Give your business a national presence
  • Choose where & how to receive calls.

Why Choose Prosum For Your Communication Needs?

  • We know communications – 50+ years of combined experience.

  • NO outsourcing – We have in-house certified technicians.

  • We provide solutions for all business needs & sizes.

  • 24/7 Australia-wide tailored support.

Ready to improve your communications?

Call us now on 1800 007 229 to discuss your business needs.

Read What Our Clients Say about us

  • 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
  • We needed an experienced ICT 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, ICT INFRASTRUCTURE & SERVICE DELIVERY MANAGER - VICTORIAN CYTOLOGY SERVICE LIMITED
  • 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
  • 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 provider we can rely on to provide and maintain our telephony and contact centre environment.


    THERESE CHAKOUR-WEST, INFORMATION TECHNOLOGY MANAGER - STIHL
  • We recently selected PROSUM to supply, install and support a NEC SV9100 IP Telephony platform for our new medical centre precinct. The team at PROSUM were very professional throughout the installation process and have been a pleasure to deal with.


    GEOFF FAZKERLEY, EXECUTIVE DIRECTOR, DIAGNOSTIC SERVICES INFRASTRUCTURE - CABRINI HEALTH
  • 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 - AITKEN REAL ESTATE