VoIP Phone Systems Melbourne

Business VoIP Phone Systems That Keep Your Team Connected

Modern cloud-based phone systems designed to support hybrid teams, improve customer communication, and reduce business downtime.

Smarter Business Communication Starts Here

Your phone system should make communication easier – not create delays, dropped calls, or unnecessary complexity. At Prosum, we deliver business VoIP phone systems that help organisations stay connected across offices, remote teams, and customer service environments.

Whether you are replacing an outdated phone system or expanding your communication capabilities, our VoIP solutions are designed to improve flexibility, call reliability, and day-to-day productivity.

Built for Modern Businesses

Cloud-Based Flexibility

Access your phone system from the office, home, or on the go using desktop apps, mobile devices, and IP handsets.

Reliable Call Performance

High-quality voice connectivity backed by secure infrastructure designed to minimise downtime and interruptions.

Scalable Communication Solutions

Easily add users, locations, and features as your organisation grows without replacing your entire system.

We work with Australia’s leading phone platforms

Why Businesses are moving to VoIP

Traditional phone systems can be expensive to maintain and difficult to scale. VoIP technology gives businesses a more flexible and cost-effective way to manage communication across multiple locations and devices.

With cloud-based phone systems, your team can work from anywhere while maintaining professional communication with clients, suppliers, and internal staff.

Included Capabilities

  • Business-grade VoIP calling
  • Call forwarding and routing
  • Auto attendants and IVR menus
  • Voicemail to email
  • Video and team collaboration tools
  • Mobile and desktop softphone access
  • Call reporting and analytics
  • Microsoft Teams integration options

Book a Consultation with Our Team

Our VoIP Deployment Process

1. Consultation & Assessment

We review your existing communication setup, business requirements, and future growth plans.

2. Solution Design

Our team recommends a tailored VoIP phone system designed around your users, locations, and workflows.

3. Installation & Configuration

We manage setup, number porting, device configuration, and testing to ensure a smooth transition.

4. Ongoing Support

Receive local Australian support, proactive assistance, and system guidance whenever required.

Supporting Organisations across Multiple Industries

We provide business communication solutions for organisations that rely on secure, reliable connectivity and responsive communication systems every day.

Our VoIP solutions support:

  • Professional services
  • Healthcare providers
  • Education organisations
  • Contact centres
  • Multi-site businesses
  • Growing Australian businesses

Benefits of a Business VoIP Phone System

Modern VoIP phone systems give businesses the flexibility to communicate from anywhere while improving reliability, scalability, and day-to-day collaboration. Whether your team works across one office or multiple locations, cloud-based calling helps streamline communication, reduce operational costs, and support long-term business growth.

Improve Team Mobility

Enable staff to take calls and collaborate from virtually anywhere.

Reduce Communication Costs

Lower call and infrastructure costs compared to traditional phone systems.

Support Business Continuity

Maintain communication during outages or unexpected disruptions with cloud-based redundancy.

Enhance Customer Experience

Improve call handling, response times, and customer interactions with advanced routing features.

What Our Clients Say

(UCXpress) is such an easy phone system to use, and it has increased productivity and efficiency in dealing with phone calls both internally and externally.

Conan Chan,

IT TECHNICIAN | LYNDHURST SECONDARY COLLEGE

I’m very glad and fortunate that I had PROSUM looking after my IT and CCTV. They are trust worthy, reliable and very easy to work with.

Mina Zacharia,

MANAGER | ASTRO MEDICAL IMAGING

Very good and prompt service. Friendly staff.

Paul Bhatti,

WATSONIA VETERINARY CLINIC

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,

FIRST SUPER

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,

ICT INFRASTRUCTURE & SERVICE DELIVERY MANAGER - VICTORIAN CYTOLOGY SERVICE LIMITED

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,

INFORMATION TECHNOLOGY MANAGER - STIHL

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

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

FAQs

A VoIP phone system uses an internet connection instead of traditional phone lines to make and receive calls.
Yes. VoIP systems allow users to access calls and communication tools from desktop apps, mobile devices, or compatible handsets.
In most cases, existing business numbers can be transferred to the new system during setup.
Yes. VoIP solutions can scale from small offices to larger multi-site organisations.
Yes. Prosum provides ongoing support, maintenance assistance, and guidance for business communication systems.
Yes. Many VoIP solutions can integrate with Microsoft Teams, CRM platforms, and collaboration tools to improve workflow efficiency and communication management.
Yes. VoIP systems are ideal for businesses operating across multiple Melbourne offices or remote locations because users can stay connected through one unified communication platform.
Businesses can use IP desk phones, headsets, desktop applications, or mobile apps depending on how teams prefer to work and communicate.
Yes. Many VoIP systems include failover and call forwarding features that help maintain communication during outages or unexpected disruptions.
Upgrade Your Business Phone System

Modernise your communication platform with scalable VoIP phone systems backed by experienced local support.

Talk to Prosum today for expert advice, a tailored quote, and friendly local support.