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Teams direct routing

Teams as the handset, 3CX as the phone system

If your people live in Teams, let them call from it — on the business number, over our Australian network, without a Microsoft calling plan. 3CX sits underneath and does what Teams does not — reception queues, overflow to mobiles, after-hours rules, desk phones for the people who want one — so the whole business is on one system.

  • Call from the Teams desktop and mobile apps
  • Your existing numbers, our Australian network
  • Reception, queues and desk phones on 3CX
  • Per-user — mix Teams users and handsets
Get a quote Call 1300 718 857 Titanium 3CX Partner — top six in Australia

Why choose us

Teams is the phone

A dial pad in Teams, calls on your business number, presence shared with the phone system. No second app for staff who already live in Teams.

No calling plan required

Direct routing replaces Microsoft's per-user calling plan. Calls run on your 3CX lines and our network at our rates.

Reception still works

Queues, auto attendant, overflow, after-hours and call recording run in 3CX. Teams users are agents in those queues like anyone else.

Mix and match

Consultants on Teams, reception on a desk phone, technicians on the mobile app — one system, one number range.

Same tenant, same team

If we manage your Microsoft 365, direct routing is configured and documented by the engineers who already look after your tenant.

Keeps working when Teams does not

A Teams outage does not take the phone system down. Calls fail over to desk phones and mobile apps on 3CX.

What you need

Teams Phone licensing for the users who will call from Teams (Teams Phone Standard, or a plan that includes it), a 3CX system, and us to connect the two. We register the session border controller with your tenant, assign numbers to users, and test call flows with you before cutover.

When Teams alone is not enough

Teams calling on its own is fine for one person ringing one person. It gets awkward at reception — queues, overflow, a proper after-hours flow, the desk phone the receptionist actually wants — and it gets expensive per user. Direct routing through 3CX gives you Teams where Teams is good and a real phone system everywhere else.

How it happens

From first call to live

1

Licensing check

Which users need Teams Phone; nothing bought that is not needed.

2

Connect

Our SBC registered with your tenant, numbers assigned.

3

Call flows

Queues, reception and after-hours built in 3CX.

4

Cut over

Tested with a pilot group, then everyone.

Frequently asked questions

Can we just use Teams as our phone system?

You can, and for a small office where everyone is at a desk it works. It gets awkward at reception — queues, overflow, a proper after-hours flow, a physical handset — and it gets expensive per user. Direct routing through 3CX gives you Teams where Teams is good and a real phone system underneath it.

What Microsoft licensing do we need for Teams calling?

Teams Phone (Standard, or a bundle that includes it) for each user who will call from Teams. You do not need a Microsoft calling plan — that is what direct routing replaces. We check licensing before quoting so nothing is bought that is not needed.

What happens to our phones if Teams goes down?

The phone system keeps working. Calls fail over to desk phones and the 3CX mobile app, and reception queues are unaffected, because the system is 3CX, not Teams.

Still have questions? Talk to a local specialist — no call centre, no scripts. Contact us

Reviews

What our customers say

5.0 from 37 Google reviews · Reviews as published, with a link back to the original.

★★★★★

We would like to extend our sincere thanks to Luke and the entire TelcoCentric team for their exceptional expertise, professionalism and support throughout the installation of our new phone and fax-to-email system. From the outset, the…

★★★★★

We recently brought our phone system into the 21st century, and the switch has been fantastic. From the first call, the team was responsive, professional, and genuinely helpful in getting everything set up. The onboarding process…

★★★★★

The whole team at TelcoCentric have been fantastic. The support we've received throughout the process has been great. Definitely recommend!

Read all 37 reviews

Reading on this

From Insights

Opinion

Teams calling is not a phone system

Microsoft Teams is an excellent way for colleagues to call each other. That is a different problem from running a business phone number, and the gap catches people out.

The TelcoCentric team · 28 August 2026 · 2 min read

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1300 718 857

Monday to Friday, 8:30am – 5:30pm ACST. 24/7 support for managed customers. Existing customer with a fault? Go to support.

  • Written, itemised quote within one business day
  • No obligation — we will say if you should stay put
  • Titanium 3CX Partner, one of six in Australia
Whatever you know — "an old on-prem PBX", "Telstra mobiles and no IT support", "not sure" is fine.
What is not working today, or what you are trying to achieve. A sentence or two is plenty.