3CX SIP Trunks

We are proudly a certified 3CX SIP trunk provider

We’ve completed extensive 3CX interoperability testing and continue to learn to ensure we deliver the best possible quality for your VoIP service.

Why opt for a certified 3CX SIP trunk provider?

3CX strongly recommends connecting to the PTSN with a certified SIP trunk provider such as Aatrox Communications. This ensures a simple installation and no compatibility issues in the present or in the future with new releases.

By working with a 3CX SIP trunk partner, you can be assured of the best possible support for your business phone systems.

Get in touch if you’re in the market for a VoIP provider, and we can find the right 3CX VoIP plan for your business.

3CX softphone on all devices

3CX & Aatrox Communications


3CX is a software-based PBX that can be deployed on your own server or in the cloud, offering a huge range of features and simple installation.

By switching to 3CX SIP trunks, you are able to save up to 80% on your telco bills, and avoid rising costs as your compay grows.

Aatrox Communications has worked with 3CX and partners since 2015 and offers 24/7 infrastructure support.

We provide reliable, cost-effective SIP trunks that work seamlessly with 3CX, and provide strategic advice to partners about the best way to set up SIP infrastructure.

If you’re looking to move your phone system to a 3CX IP PBX, we can get you in contact with one of our preferred VoIP providers.

Deploy On-premises or Cloud: The Choice is Yours


The 3CX phone system is available to be hosted either on premises or in the Cloud, offering a flexible and simple solution for businesses of all types and sizes.


 Cloud Solutions

  • Set up your free Cloud PBX in minutes with the PBX Express Tool
  • Large range of Cloud providers available including Google, Amazon, OH and more.


On-premises Solutions


  • Available on existing Windows or Linux machine.
  • Deploy on a MiniPC Appliance.
  • Virtualize and segregate on Hyper-V or VMware.
Cloud VoIP Provider
3CX dashboard and phone

3CX Installation & Management


Pre-configured 3CX SIP trunk templates are available with Aatrox Communications.

It’s as simple as plugging an IP Phone or Gateway into your network for automatic configuration.


Management simplified through the Management Console


  • Reboot and reprovision and update IP Phones
  • Import and remove contacts
  • Create, edit and delete extensions and DIDs.

iOS and Android Clients

Download 3CX Clients on your Android / iOS Device

  • Free VoIP calls with an internet connection
  • Business extension available anywhere
  • Presence, web conferencing and conference calling available on smartphones
  • Push notifications available so you never miss a message
  • Most progressive and feature-rich UC app on the market

Web client

Download Web Client

  • Reduced bandwidth usage with WebRTC technology integrated into the web client
  • Click to Call Chrome Extension
  • Multiple UC features

Mac & Windows Features

Easy to Use Windows & Mac Softphones

  • Initiate IP Phone calls from your desktop
  • Flexibility to work remotely
  • Receptionist view available with drag-and-drop functionality for call tranfers
  • Integration with Office 365, Google contacts and Internal Phonebook to initiate calls directly from your CRM
  • Includes Wallboard and Q-Manager view

Security & Backup


3CX inbuilt security has been developed to protect your PBX system, setting the standard for VoIP security with an A+ rating from SSL Lab.

Security benefits of 3CX IP PBX:

  •  Automatic Failover to ensure uptime is not compromised
  • SSL certificates are automatically generated
  • All calls are encrypted via SRTP and SBC, both ensuring advanced security features
  • The 3CX client automatically detects and blacklists SIP Attack tools
  • Increased security of your web server configuration
3CX dash board
3CX videoconferencing

Integrated Video Conferencing


  • Up to 5 participants free
  • Initiate a video conference with a single click
  • Bandwidth management and control
  • Pre-upload PowerPoint and PDFs for collaboration on documents

Get started with 3CX and Aatrox Communications today

Get in touch

Aatrox Communications is an New Zealand owned and operated full service SIP trunk provider. We specialise in connecting the traditional telephony network to the internet for small and large businesses.