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Three colleagues in a dim office reviewing a security dashboard and ticket queue on a bank of monitors
Business phones · Cloud VoIP

Modern business phone solutions

Reliable, scalable cloud phone systems designed for professional teams.

Your phone system · illustrativeChecking…
  • Business numbers
  • Auto-attendant
  • Voicemail-to-email
  • Mobile app
  • Internet failover
In short

Defy IT sets up and supports business phone systems and VoIP, including handsets, call routing and internet-based calling. It suits businesses replacing an ageing phone system or moving to cloud telephony.

Features

Built for modern teams.

Everything you need to sound professional and manage calls, in one platform.

Brandon from Defy IT helping a receptionist at her front desk workstation
Office, remote or on the road

One professional system for the whole team.

VoIP technology

Clear calls over your internet connection.

Call management

Route and forward calls from a cloud panel.

CRM integration

Calls linked to your business software.

Mobile apps

Your business number, wherever you are.

Call analytics

Volumes, wait times and team performance.

Auto-attendant

Greetings and menus that route callers.

Voicemail-to-email

Messages straight to your inbox.

Conference calling

Built-in audio conferencing.

Sound familiar?

Old phone lines hold you back. We defy them.

A cloud PBX isn’t just cheaper — it’s more capable.

Get a custom quote
  1. Expensive traditional phone lines — the norm we reject.Calls over your internet connection.
  2. Changing numbers to change systems — the norm we reject.Your landline, 1300 and 1800 numbers ported.
  3. Missed calls when the internet drops — the norm we reject.Calls reroute to mobiles or voicemail automatically.
  4. Chained to a desk phone — the norm we reject.Softphones and mobile apps, if you prefer.
  5. New lines for every new hire — the norm we reject.Users added in minutes through the portal.
  6. Voicemails nobody checks — the norm we reject.Voicemail delivered to your inbox.
Brandon from Defy IT working with a staff member at her desk in an agency office
Why a cloud PBX

Sound established, whatever your size.

First impressions matter — and cloud VoIP consolidates your voice and data networks, cutting monthly telecom costs.

  • Custom greetings & menus
  • Professional hold music
  • Department-based routing
  • Free internal calls between sites
Request a cost comparison
“Super helpful, patient and reliable. Highly recommend. Thank you Brandon!”
MNMichelle NobleGoogle review, April 2026
FAQ

Business Phone FAQs

Can't find what you're after? Call us on (07) 3521 8515.

Upgrade your business communication

Ready to switch to a reliable, feature-rich cloud phone system? Contact us today for a custom quote tailored to your team's needs.

Local support across South East Queensland