Providers of SIP Trunks, 3CX Phone Systems, and Fibre 1000 – a positive upgrade for any Australian business.


  • ISDN, PTSN Services to be Decommissioned - Prepare for VoIP Telephony

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  • Unlimited Mobile Extensions with a 3CX Phone System

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  • Compare C2 Comm's Call Rates

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C2 Communications provide end to end VoIP, 3CX, Broadband and Customer Service Australia Wide. Our clients are the beneficiaries of our continuing investment in excellent quality SIP Trunks, 3CX Phone Systems, and Fibre 1000 broadband.


Compare our Services and Pricing

We provide a complete set of solutions for business-critical communication services and competitive pricing on SIP Trunks ready for 3CX.

C2 Voice

Tier 1 VoIP telephony services including, number and line rental, and inbound services.

Fibre 1000

Fast and reliable 1000 mbps broadband connections.

3CX Phone System Hosting

Flexible and scalable PBX solutions from 3CX phone systems hosted in C2comm’s virtual private cloud.

One Bill

Single point of billing for all C2 Voice, 3CX Support, Fibre 1000 services.

Local Support

Business focussed support provided by our experienced local and technical teams.

Number Activation

Number porting services to help you migrate your business numbers from existing carriage.

C2 Blog

A comprehensive feed of relevant news affecting communications and broadband infrastructure in Australia.

Office 365 and 3CX Now One-way Sync

3CX has always provided out of the box integration with Office 365 better than any other PBX vendor in the industry. One…

15/03/2019 | Read more

We Review Status Lights for the 3CX Softphone

This month we set out to integrate 3CX Softphones with two brands of status lights. Why? It’s always fun to challenge the…

13/03/2019 | Read more

What Our Clients Say

  • C2 Communications installed our 3CX phone system and it works seamlessly between our several sites. The changeover to using SIP lines has proven to be extremely cost effective. After the installation, our staff were trained on how to manage the system internally and we are particularly impressed with its reliability and functionality. It’s definitely been a positive move for our business.


  • We’ve had the 3CX VOIP system installed for a number of years, and we’ve been impressed by its versatility to expand and adapt with our growing business. The team at C2 Communications are easy to work with and very flexible in their approach.


  • I had not seen an install of a phone system undertaken with such efficiency and speed, until the team at C2 Communications installed our 80 handsets/extensions in only a few hours. Our VoIP service has worked smoothly ever since and we can manage it internally without the need for specialist PBX technicians.


  • The technical and professional staff at C2 Communications have been extremely helpful in getting our entire IT&T networks to work smoothly and effectively across several Melbourne offices. With the high volume of telephone calls made, we have certainly benefited economically with the decision to install 3CX. The IT team has been highly responsive and we would not hesitate in recommending both their IT services and VoIP solutions.