VOIP Support & Configuration forSydney

Whether you're upgrading an existing phone system or setting up a new office, COLETEK provides expert Voice Over IP (VOIP) support for businesses in Sydney. We design, deploy and support robust VOIP solutions built on open-source platforms.

We Support:

  • Asterisk (custom dialplans, SIP trunking)
  • FreePBX by Schmooze
  • Elastix / AsteriskNOW by Digium
  • Softphones, IP handsets & mobile integration

What We Offer

  • On-premise & cloud-hosted PBX systems
  • VOIP network planning and security hardening
  • Call routing, IVR setup and voicemail-to-email
  • Remote support and maintenance

Our team of Linux experts ensures your VOIP system is secure, scalable, and cost-effective. We support everything from small business setups to multi-site deployments with complex call flows and advanced features.

Want to upgrade your phone system or reduce costs? Talk to our VOIP team today.

VOIP Support and Asterisk Configuration

Open Source VOIP. Powerful. Flexible. Secure.

Information About Sydney

Trusted Partner for Sydney Businesses: COLETEK's Local Expertise and National Reach

In the heart of Australia, where urban excitement meets coastal charm, lies a hub of entrepreneurial spirit - Sydney, Sydney & Surroundings, New South Wales, Australia. And at the very core of this thriving business landscape is COLETEK, a trusted Australian company with extensive experience in supporting local businesses and communities.

As you navigate the complex world of commerce in Sydney, it's comforting to know that you can rely on a partner who truly understands the pulse of this dynamic region. With a deep understanding of the unique challenges and opportunities facing Sydney businesses, COLETEK is well-equipped to provide tailored support and guidance every step of the way.

We're proud to have established ourselves as a trusted name in Australian commerce, with a national presence that extends across urban centers like Sydney to regional communities. Our local presence allows us to stay attuned to the ever-changing landscape of industries and market trends, enabling us to deliver meaningful value to our clients.

At COLETEK, we believe that genuine trust is built on shared values and a commitment to transparency. We take pride in being an Australian company, rooted in local culture and community, yet equipped with the innovation and expertise necessary to navigate the modern business landscape. By choosing COLETEK, you're not just selecting a service provider - you're partnering with a trusted ally who will support your growth and development every step of the way.

So why wait? Reach out to COLETEK today and discover how our collective experience, national reach, and local expertise can benefit your Sydney-based business. Let's work together to build a brighter future for your company - one that is grounded in trust, innovation, and community.

Contact Us

VoIP Setup & Support for Sydney – Our Clients: Big Brands & Small Businesses


VoIP Setup & Support for Sydney – Amazing Customer Testimonials

I was very impressed with the prompt service I received from COLETEK IT. I submitted a request for assistance on Thursday when my Windows PC failed to boot. I dropped the computer off Friday. Saturday - I was notified that analysis was complete and that a reinstall of Windows was required. Sunday - I was notified that Windows had been reinstalled and all my data had been copied back. Monday - I picked up my recovered machine from COLETEK. Four days from initial contact to having my system back would be great service in anyone's book. I have no hesitation in recommending COLETEK IT.

We've worked with Luke and the team on and off for the past two years. We've found them very accessible and extremely thorough in their dealings. Their documentation is second to none and we’d have no hesitation recommending them on this basis alone.

I have been working closely with COLETEK for the past 6 years now, and I must say, it is a success story :-). I highly respect their team, they are a pleasure to work with and top skilled professionals. In addition to their top Technical service, their customer service is brilliant and it is a rare find. Their PCB repair rework skills are top notch and a rare find in this industry. I have been working in the IT industry for the past 20 years in various fields and seen it all so I can say with certainty that they are the best around and I am looking forward to keep working with them in the future.

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I have outsourced many projects through COLETEK over the years for a variety of applications. Applications such as a online based software platform that pulls live data feeds and updates in real-time to the user. A custom built website for adding users and products that achieved over 20,000 listings. Mobile applications. Data recovery and hardware repair. Custom SEO services and secure hosting services. I choose COLETEK because I know that a job will get done as requested and within a reasonable time frame. Also I'm a stickler for security and they're the best.

We recently engaged the services of COLETEK to perform some penetration testing on our systems. We found Luke flexible and accommodating with our specific needs. Luke provide what we needed to show our clients our security measures with our systems. I would have no hesitation in recommending Luke.

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We experienced some issues with our Linux server. I contacted Luke and explained my concerns, Luke come to our office (after hours) to run some tests and when advised me that some programming was required and that the hard drives were overdue for replacements. Luke suggested I drop the server of at his office on Friday late afternoon so he could do the fix on the weekend and he would come to our office on Sunday afternoon to install the updated server. I gladly accpeted such a great offer. Everything went exactly to plan even though we had to deal with really bad storms and some power outages on that weekend. Job well done.

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Luke from COLETEK provided server setup and consultation for our media production Business. They were prompt, professional, and helpful, and gave us some good ideas and options when it came to a custom and cost effective solution. They have been prompt and responsive since initial setup, offering advice as needed and supporting additional requests. Highly recommended!

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