Business Phone Systems Australia — Cloud, On-Premise & SIP from $20/user
Australia's one-stop hub for business phone systems — from cloud PBX and enterprise Avaya to ready-to-go BizTel bundles, plus VoIP handsets, SIP lines, cordless phones, video conference systems and Messages on Hold. One Australian partner. 10+ years experience. Avaya Platinum.
A modern business phone system is more than just making and receiving calls — it's the backbone of how your team collaborates, how customers reach you, and how your operations stay connected across locations. Whether you run a five-person consultancy in Sydney or a 500-seat contact centre nationwide, the right platform reduces costs, improves caller experience, and gives your team mobile-ready tools.
Comstel ICT has been delivering business telephone systems across Australia since 2015. Our full range covers three platforms — iPECS Cloud for growing teams, Avaya for enterprise contact centres, and BizTel for ready-to-go small business bundles — plus everything you need to complete the setup: VoIP desk phones, Wi-Fi & cordless handsets, hospitality phones, video conference systems, SIP phone lines, traditional landlines and professional Messages on Hold production.
One Australian partner, every component of your phone system — designed, deployed, trained and supported 24/6 from our North Sydney office. Choose your platform below, or request a tailored quote and we'll match the right combination of platform, handsets and lines to your team.
Australia's Multi-Platform Phone System Specialist
Australian-owned, locally supported, and certified across the industry's top platforms — so we recommend the right system, not just the one we sell.
Everything Else That Makes Up Your Phone System
Once you've picked a platform, choose the handsets, lines and extras that complete your setup. Or buy any of these as a stand-alone service.
VoIP Phones
Professional IP desk phones from Yealink, Snom, Cisco and Avaya — touchscreen, expansion modules and Wi-Fi-ready models compatible with any SIP platform.
Explore VoIP phonesSIP Phone Lines
Australian SIP trunking with 1300, 1800 and local numbers. Replace traditional ISDN/PSTN lines with cloud SIP at a fraction of the monthly cost.
View SIP line optionsWi-Fi & Cordless Phones
Dual-band Wi-Fi handsets and DECT cordless phones for warehouses, retail floors, healthcare and any premises where staff need mobility on the move.
Browse cordless phonesHospitality Phones
Hotel-grade phones with one-touch concierge, room status, wake-up call and multi-language features. Designed specifically for guest rooms and reception desks.
See hospitality rangeVideo Conference Phones
All-in-one video conference systems for boardrooms, huddle spaces and meeting rooms. Yealink, Poly and Logitech with native Microsoft Teams & Zoom support.
Explore video systemsMessages on Hold
Professional voice-recorded music and message on hold programmes. Custom scripts, Australian voiceover artists, monthly content updates included.
Get on-hold messagingBusiness Landlines
Traditional fixed landline connections — analogue and ISDN lines with Australian numbers, full number porting and ongoing support included.
Compare landline plansMulti-platform certified. Australian owned & supported.
We're certified across all three major business phone platforms — so we recommend the right system for you, not just the one we happen to sell.
Avaya Platinum Partner
Highest Avaya certification tier in Australia. Full access to Avaya engineering escalation, beta programs and enterprise support.
10+ Years Experience
Designing and deploying business telephone systems for Australian businesses since 2015 — across professional services, healthcare, retail and government.
Local Australian Support
Real Australians on the phone, in our North Sydney office. 24/6 support included with every system. No offshore call centres.
iCode Compliant
Full compliance with Australian Communications industry code of practice. Your data, your customers and your business stay protected.
iPECS Certified Engineers
Our engineers are factory-trained and certified on iPECS Cloud and Ericsson-LG hardware. Faster installations, fewer surprises.
Multi-Vendor Specialists
Certified across 3CX, Cisco, iPECS and Avaya. We can integrate with your existing systems or recommend a fresh start.
Phone Systems for Every Industry
From single-location professional services to multi-site healthcare networks, we've deployed phone systems across every major Australian industry.
From Discovery to Day-1 Dial Tone
Most installations take 1–3 weeks from sign-off to live system. Here's exactly how it works.
1. Discovery Call
30-minute consultation to understand your team size, locations, current setup, and what you're trying to achieve.
2. Tailored Proposal
Detailed quote with platform recommendation, monthly cost breakdown, installation timeline and training plan.
3. Install & Train
Professional installation, number porting, handset provisioning, and a training session for your team. Done on-site or remotely.
4. 24/6 Support
Ongoing Australian support from our North Sydney team. Phone, email, remote troubleshooting and on-site if needed.
Common Questions About Business Phone Systems
What's the best business phone system for a small business in Australia?
For most small Australian businesses (1–50 users), BizTel is the simplest path — a pre-configured bundle powered by Ericsson-LG iPECS technology with handsets, installation, training and a 36-month plan from $20/user/month. For multi-location or distributed teams, iPECS Cloud is better. Enterprise operations with contact centres should look at Avaya.
How much does a business phone system cost?
BizTel bundles start from $20/user/month and include the handset, installation and training. iPECS Cloud starts from $25/user/month and scales to 1000+ users. Avaya is enterprise-priced — typically $50–$150/user/month depending on features. Installation in Sydney Metro is $199 + $99/hr; outside Sydney is $199 callout plus $0.95/km.
What VoIP phones are compatible with Comstel phone systems?
We supply VoIP phones from Yealink, Snom, Cisco, Avaya and Ericsson-LG — entry-level handsets, executive touchscreen phones, conference phones, expansion modules and Wi-Fi-ready models. Any SIP-compatible handset works on our iPECS Cloud and Avaya platforms, and our BizTel bundles include matched handsets in the package.
Do you supply phone systems for hotels and hospitality businesses?
Yes — we offer dedicated hospitality phones with one-touch concierge, room-status indicators, wake-up call functions and multi-language interfaces designed for guest rooms, lobbies and reception desks. They integrate with property management systems and work with any of our three phone platforms.
Can we use cordless or Wi-Fi phones in a warehouse or large premises?
Yes. We supply dual-band Wi-Fi and cordless phones for warehouses, retail floors, healthcare facilities, manufacturing plants and any large premises where staff need to roam. The handsets connect to your existing Wi-Fi network or a DECT base station, with seamless handover between zones.
What's the difference between SIP phone lines and traditional landlines?
SIP phone lines use your internet connection to deliver calls — cheaper, more flexible, scalable, and able to support 1300/1800/local numbers from one Sydney circuit. Traditional landlines use the analogue PSTN or ISDN network. We support both: SIP for businesses ready to move to internet-based calling, and landlines for businesses with specific legacy requirements.
Cloud PBX vs on-premise PBX — which is better?
Cloud PBX (like iPECS Cloud) wins for distributed teams, lower upfront cost, automatic updates and scalability. On-premise PBX (Avaya IP Office) wins for organisations needing absolute control, integration with legacy systems, or operating in regulated industries. We'll recommend the right one based on your team size, locations and IT setup.
Can I keep my existing phone number?
Yes. We port your existing landline, 1300 or 1800 numbers to the new system at no extra cost. Number porting typically takes 5–15 business days and is handled entirely by our team.
How long does installation take?
BizTel bundles are live in 3–7 business days once handsets ship. iPECS Cloud setups are typically 1–2 weeks. Avaya enterprise deployments depend on scope but a 50-user system usually takes 2–4 weeks including training. Sydney Metro installation is on-site; remote installations are also available Australia-wide.
Can you provide professional Messages on Hold for our phone system?
Yes. We offer fully produced Messages on Hold programmes with custom scripts, professional Australian voiceover artists, licensed background music and monthly content updates. They install onto any of our phone platforms and turn hold time into an opportunity to promote your business.
What's the best video conference phone for our boardroom?
Depends on room size. For small huddle rooms, an all-in-one bar with built-in camera, mic and speakers is ideal. For medium meeting rooms, a separate camera and conference phone setup works better. For large boardrooms, we deploy dual-camera systems with ceiling microphones. All our video conference systems integrate with Microsoft Teams, Zoom, Google Meet and Webex.
Can I use my mobile as a business phone?
Yes. iPECS Cloud has free iOS and Android apps that turn any smartphone into a full business extension — make and receive calls from your business number, see colleague presence, transfer calls, access voicemail. Avaya has equivalent mobile apps. Your mobile shows your business caller ID, not your personal number.
What's the difference between iPECS Cloud, Avaya and BizTel?
BizTel is for small businesses — simple, pre-packaged, fast deployment, fixed monthly cost (from $20/user/month). iPECS Cloud is for growing and multi-location businesses — fully cloud-hosted, scalable from 5 to 1000+ users. Avaya is for enterprises — advanced contact centre, AI analytics, multi-channel communications. All three sold and supported by Comstel ICT.
Ready to upgrade your business phone system?
Book a consultation, send an enquiry, or call us directly — whichever suits you.
Book a 30-min Consultation