Take your phone system to new heights.

Are you opening a new office or moving premises, looking to reduce costs or are worried about disaster recovery? Take your phone system to new heights. We’re ready to help you move your phone system into the cloud.

Learn more about C9X—the industry’s leading cloud-based phone system

The art of talking

Our Voice network brings you fast, reliable, crystal-clear and seamless calls. Our HD voice technology delivers a wider sound range in each call—no one repeating themselves, no frustration, just enjoyable customer experiences every time.

Out with the old, in with the new.

In today’s business world, routing calls over analogue copper lines is inefficient and costly, especially when the internet allows for cloud based telephony and IP phone systems. And with the advent of remote working, you need to be connected to your teams at any time.

C9 Communications can help businesses take full advantage of this by transitioning your legacy phone systems to the cloud with business SIP trunking.

Secure systems and crystal-clear calls

Session Initiation Protocol (SIP) trunking uses VoIP to connect to the internet. Unlike traditional telephony, where bundles of physical wires joined a business to their service provider, SIP trunking allows a company to secure their IP phone systems to the network via IP over a business-grade data service. The result? You’ll experience crystal-clear, seamless calls at just a fraction of the cost. We guarantee it.

We’ll make sense of it for you.

With so many IP telephony options available, it’s easy to feel overwhelmed. Let us be your most trusted IT partner—we’re dedicated to researching your business requirements, demystifying the technical side of all things voice and VoIP, and coming up with the magic mix of IP phone systems, IP landline phone and VoIP phones. And it doesn’t end there—we’ll stick by you, even after our guaranteed super-easy installation. Reachable anytime, you’ll have a dedicated IP telephony associate here to help you connect and talk to your team and customers with ease. We understand that your business demands change over time, and with that, your voice needs will, too. So we’ll grow with your business to ensure you’re connected, always.

Our Process


Cloud vs On-Premises?
It’s the end of the One-Size-Fits-All approach

Our people are experts in understanding your unique business requirements and goals, making sense of complexities and finding a solution that’s perfect for you and your business—both now, and in the future.

Installation & Management

We work with you every step of the way through professional, reliable installation, troubleshooting and ongoing advice and maintenance.

Provisioning & Porting

Complex processes require care and attention to ensure minimal impact on your business. C9 applies strict measures and a transparent approach to ensure you’re always in good hands.


Benefit from dedicated in-house and remote training from our experienced team, so you understand your internet, cloud and voice connections, and you’re equipped and comfortable with all the tools at hand.


Our responsive, supportive, and knowledgeable team are just a call away and ready to help, whenever needed.

Our Voice

For VoIP phones Australia, get in touch so we can work with you to create a first-class, super-reliable and cost-effective cloud based telephony system today.


CX9 is the new frontier in telephony—a total unified communications solution to innovate and serve your business well now and into the future.

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Integrate multiple communication methods in one streamlined, state-of-art solution for your business, no matter the scale or complexity.

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Connect to the internet via VOIP and experience crystal-clear, seamless calls at just a fraction of the cost. We guarantee it.

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Our systems are built for easy, reliable connection to Microsoft Teams, making your business even more agile.

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Let your customers choose the way they interact with you. Connect all channels in one easy-to-use contact centre solution—website, social media channels, apps, phone, live chat and more.

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Talk to our solutions specialists now.

Click the button below for site qualification and a monthly price on your selected service.
Or Call 1800 000 C9X

Customer Stories

five stars

C9 has provided us with great product techology, IT consultation and advice that has lifted our telecommunications and network capabilities beyond our expectations. We continue to experience great service and support knowing that we are valued and important as customers of C9.

Zoran Radevski