What is the difference between UCaaS and a traditional phone system?

A traditional PBX lives on a box in your comms room — you buy the hardware, license it per seat, and replace it every several years. UCaaS runs in the cloud as a subscription. You get voice, video, messaging and mobile in one platform, scale up or down by seat, and don't carry the capital cost or end-of-life risk of on-premise hardware.

Can we keep our existing business phone numbers?

Yes. We port existing numbers from your current provider to the new platform. With proper planning, the cut-over is essentially seamless — no downtime, no number changes.

Do staff need a deskphone, or can they use their laptop and mobile?

Either. Most modern deployments use a mix: deskphones at reception or for staff who prefer them, softphone on the laptop for desk work, and a mobile app so calls follow staff when they leave the office.

How much internet do we need for UCaaS?

Voice traffic is light — roughly 100 kbps per concurrent call. The bigger factor is reliability. We typically recommend a business-grade primary connection with a failover (often NBN + 5G) so calls don't drop if one service goes down.

Do you provide training and support after go-live?

Yes. We run user training before cut-over, are on-site or on-call for go-live day, and offer ongoing support agreements so changes, new starters and call-flow tweaks are handled by us, not your IT team.

Modern VoIP desk phone next to a laptop in a bright professional corporate glass office

S E R V I C E

Business Phone Systems and UCaaS Australia

Modern cloud phone systems for Australian businesses — voice, video, messaging and mobile on one platform, with no on-premise PBX to maintain.

Last updated: 2026-06-05

Kookaburra Comms delivers cloud business phone systems and UCaaS (Unified Communications as a Service) across Australia. UCaaS combines voice, video, conferencing and messaging in one platform, supports remote and mobile staff, scales without new hardware, and removes the up-front capital cost of a traditional PBX.

Key facts

UCaaS moves call control from an on-premise PBX into a cloud platform.
Cloud phone migrations usually need number mapping, call-flow design, user training and planned cut-over support.
Reliable business internet with failover is a practical requirement for cloud phone systems.

Common use cases

Replacing an ageing on-premise PBX with a cloud phone system
Supporting hybrid and remote teams on the same phone numbers and extensions
Giving mobile staff a softphone, deskphone or both
Adding video meetings and chat without buying a second platform
Porting existing business numbers to a new provider with no downtime
Scaling up or down by seat as headcount changes

What's included

Discovery: existing system, numbers, integrations and team workflow
Platform selection (including 8x8) and licensing sized to your seats
Number porting and call-flow design (IVR, hunt groups, after-hours)
Handset selection, provisioning and delivery
Softphone and mobile app rollout for desktop and mobile staff
End-user training and post go-live support

What a UCaaS rollout looks like

We start by mapping your existing call flows — who answers what, after-hours behaviour, voicemail-to-email, integrations with CRM or helpdesk tools. From there we design the new system on paper before we touch anything live.

Porting and provisioning happen in parallel, training is done before cut-over, and we’re hands-on through the first business day on the new platform. Most cut-overs are uneventful — which is exactly the goal.

Why Kookaburra Comms

UCaaS-certified, with hands-on delivery experience across Australia
Vendor-agnostic recommendations — we work for you, not the carrier
Clear pricing with no surprise per-feature add-ons
Local Melbourne team, supporting interstate sites remotely

Frequently asked questions

What is the difference between UCaaS and a traditional phone system?: A traditional PBX lives on a box in your comms room — you buy the hardware, license it per seat, and replace it every several years. UCaaS runs in the cloud as a subscription. You get voice, video, messaging and mobile in one platform, scale up or down by seat, and don't carry the capital cost or end-of-life risk of on-premise hardware.
Can we keep our existing business phone numbers?: Yes. We port existing numbers from your current provider to the new platform. With proper planning, the cut-over is essentially seamless — no downtime, no number changes.
Do staff need a deskphone, or can they use their laptop and mobile?: Either. Most modern deployments use a mix: deskphones at reception or for staff who prefer them, softphone on the laptop for desk work, and a mobile app so calls follow staff when they leave the office.
How much internet do we need for UCaaS?: Voice traffic is light — roughly 100 kbps per concurrent call. The bigger factor is reliability. We typically recommend a business-grade primary connection with a failover (often NBN + 5G) so calls don't drop if one service goes down.
Do you provide training and support after go-live?: Yes. We run user training before cut-over, are on-site or on-call for go-live day, and offer ongoing support agreements so changes, new starters and call-flow tweaks are handled by us, not your IT team.

Helpful guides

What Is UCaaS? What Is CCaaS? — Plain-English explainer of cloud phone categories.
UCaaS vs Traditional Phone Systems — How cloud phones differ from a traditional PBX.
On-Premise PBX vs UCaaS: The True 5-Year Cost — A realistic five-year cost comparison.
8x8 vs RingCentral vs Teams Phone vs 3CX — Comparing the leading UCaaS platforms.

Related services

8x8 Cloud Communications — Specialist 8x8 XCaaS delivery: UCaaS + CCaaS on one platform.
Contact Centres & CCaaS — When you need queues, omnichannel and analytics on top of voice.
Business Internet — NBN, Fibre & 5G — Cloud phones need reliable internet — usually with failover.

Talk to Kookaburra Comms

Get a no-commitment quote for business phone systems and ucaas across Melbourne, regional Victoria or interstate. Call 03 9008 4199 or send a message.

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