Business phone systems Melbourne — 3CX, Teams voice, hosted PBX
Business phone systems in Melbourne: 3CX, Teams Voice and hosted PBX, set up by security-certified engineers. Keep your numbers and pay a clear price per seat.
Business phone systems in Melbourne
Key IT supplies, sets up and supports business phone systems in Melbourne — 3CX, Microsoft Teams Voice and hosted PBX, all running as VoIP over your internet connection — and moves you off your old system without losing your numbers. A modern setup usually costs less than the old PBX gathering dust in your comms cupboard, works wherever your staff do, and is priced clearly per seat.
Which business phone system is right for you?
For most Melbourne businesses it comes down to 3CX or Microsoft Teams Voice: Teams Voice if your staff live in Microsoft 365, 3CX if the phone is your front door and you need call queues, IVR menus and detailed call reporting.
3CX
A full unified-communications platform with video, chat and advanced call handling, excellent value per seat. Add 3CX caller analytics to see wait times and missed calls on a live dashboard.
Microsoft Teams Voice
Calling built into Teams, so staff take business calls in the app they already use; ideal if you run Microsoft 365.
Hosted PBX
A cloud phone system with the familiar features, no on-site hardware.
Traditional PBX
Legacy on-premise hardware; we help you move off it.
What is a VoIP phone system?
A VoIP (voice over internet protocol) phone system carries your calls over the internet instead of copper phone lines. A hosted PBX, often called a cloud phone system, runs the switchboard in a data centre rather than a box in your office, and SIP trunks are the internet-based lines that connect a system like 3CX to the public phone network. Since the NBN switched off most copper phone services, business landlines mostly run over the internet already.
Why move to a cloud phone system?
Because you stop maintaining ageing hardware and paying old-style line rental, you gain video, chat and presence, and adding a new starter takes a few clicks, not a technician's visit. We manage the move without dropping calls, and the same local team that handles your IT support looks after your phones.
How does switching to a new phone system work?
Switching happens in five planned steps, so your calls keep flowing throughout.
Review
We check how calls flow today, your contracts and handsets, and whether your internet and office network can carry voice well. Desk handsets plug into the same switches and cabling as your computers, so if those need work first, we can handle the business network setup as well, from the firewall and switches to the Wi-Fi and cabling.
Design
We recommend a platform and build call flows, menus and ring groups around how you work.
Connect
If needed, we arrange business NBN or fibre with failover.
Port and go live
Your numbers move across on an agreed date, with handsets and apps ready.
Train and support
Staff get a short walkthrough, then our helpdesk takes over.
Is a VoIP phone system secure?
Yes, when it is set up properly. Badly configured systems are a known target for toll fraud, where criminals break in and run up international calls on your account. Our security-certified engineers lock down admin access, set strong extension passwords, restrict overseas and premium-rate dialling you don't use, and keep the software patched.
Frequently asked questions
What is the difference between 3CX and Teams Voice?
3CX is a dedicated unified-communications platform with rich call features; Teams Voice adds calling inside Microsoft Teams. If your business runs on Microsoft 365, Teams Voice is a natural fit; if you want advanced call handling, 3CX often wins.
How much does a business phone system cost?
Most modern systems are billed per user (seat) per month, plus any calls outside your plan and any desk handsets you buy. Add up line rental, PBX maintenance and call costs, and that usually works out cheaper than a legacy system. Key IT quotes clearly per seat so you can compare it with your current bill.
Can I keep my existing phone numbers?
Yes. We port your existing numbers across as part of the migration.
Do these systems work for remote staff?
Yes. 3CX and Teams Voice work from any internet connection, so staff have the full system at home or on the road.
What happens to our calls if the internet goes down?
Your phones don't have to go quiet. Staff can keep answering in the 3CX or Teams app on their mobiles, incoming calls can divert to mobile numbers, and a 4G/5G failover connection can keep the office online. We plan for this at setup, not after the first outage.
Do I need special handsets?
You can use compatible desk handsets, computer softphones or mobile apps — whatever suits each user.
Who supports the system?
Key IT does. Our helpdesk supports your phones alongside the rest of your IT, Monday to Friday 8am to 5pm, and urgent after-hours faults for managed clients go to an on-call engineer. One local team to call, not two suppliers blaming each other.
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