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T4 Group

VOIP & MICROSOFT TEAMS PHONE

Replace Your Office Phone System Without the Legacy Hardware

Take calls on your laptop, mobile, or desk handset, all through the app your team already uses. No PBX, no separate phone bill, and no on-premises box gathering dust in a cupboard.

WHY THIS MATTERS NOW

The Risks of Sticking With What You Have

The copper phone network is being progressively switched off across Australia as the NBN rollout continues. If your business still relies on an on-premises PBX or analogue lines, these are the risks worth understanding before a forced migration date is set for your exchange.

Copper Switch-Off Risk

Analogue and PSTN lines are being retired exchange by exchange. An old PBX with no NBN-ready plan can leave your phones dead with little warning.

No Network QoS Configured

Voice traffic competing with everything else on an unmanaged network leads to dropped calls and poor quality exactly when it matters.

Emergency Calls Misrouted

Without emergency location mapping configured correctly, a 000 call can send responders to the wrong address.

No Failover If the Internet Drops

A single internet outage can take every phone line down at once if there's no fallback path for calls.

YOUR PHONE SYSTEM, RETHOUGHT

Your Office Phone, Inside the App Your Team Is Already Using

If your business already runs on Microsoft 365, the platform for a proper phone system is one most of your team already has open. We configure Microsoft Teams Phone so calls, chat, and meetings live in one place, with no separate telephony provider to manage.

HOW TEAMS PHONE ACTUALLY WORKS

From Signed Proposal to Ported Numbers in 2–4 Weeks

1. Assess & Design

We map your current setup, call flows, and number ranges before designing what Teams Phone should look like for your team.

2. Build & Port Numbers

Auto-attendants, call queues, and licensing are configured in your Microsoft 365 tenant, then your existing numbers are ported on a scheduled cutover, with your old system kept live as a fallback.

3. Go-Live & Support

Short, practical training so your team is comfortable making and taking calls in Teams from day one, with support on hand.

Rated 5 out of 5
“T4 Group understand our business and provide support that is reliable, proactive and tailored to our needs. They're a trusted partner we can count on.”
Director, Accounting Firm, Melbourne
Designer
FAQ

Common Questions About VoIP & Teams Phone

In almost all cases, yes. We port your existing numbers across as part of a planned cutover, so there’s no need to reprint stationery or update your Google listing.
We’ll check your contract terms and plan the transition around your notice period, so you’re not paying for two systems longer than necessary.
It’s typically a fixed per-user monthly licence on top of your Microsoft 365 subscription, plus a calling plan. We’ll give you a clear, itemised quote before anything is switched on.
Emergency calling is configured as part of setup, with your registered address mapped correctly so emergency services have accurate location information.
Call quality depends on your internet connection, so we assess this upfront. Where bandwidth is limited, we’ll advise honestly on whether Teams Phone or a different option is the better fit.
Yes, call recording is available as an add-on and can be configured to meet common compliance and training requirements.
GET IN TOUCH

Talk to a Teams Phone Specialist

Tell us about your current phone setup and we’ll walk you through what a Microsoft Teams Phone rollout would look like, numbers, timeline, and pricing included.

BOOK A DISCOVERY CALL

Let's talk about your IT