Since 1989, C4i has led advancements in secure communications for the world’s most demanding mission-critical environments. C4i’s interoperable communications solutions are used by …

Based in Melbourne, Australia, the C4i team design, manufacture and integrate communications solutions for clients all over the world. For over 30 years we have created customized …

C4i offers customers a secure, high-availability communications system that can be expanded from the smallest single-site system to the largest multi-site national system.

Meet the need for interoperability between military and other agencies and between coalition forces with C4i’s portable Communications-On-The-Move COTM product.

Meet the need for interoperability between military and other agencies and between coalition forces with C4i’s portable Communications-On-The-Move COTM product.

Under the contract, C4i is developing sovereign voice communication systems with a built-in intuitive Human Machine Interface that will connect into Joint Air Battlement Management C2 …

“We will combine the strength of Frequentis and C4i mission-critical communication platforms to provide market leading technology and solutions based on extensive security, compliance, and …

Frequentis C4i announces that it has been under contract since 2024 to provide cutting-edge multi-domain communication systems for the Australia Defence Force’s (ADF) next-generation …

C4i has an extensive history of developing voice communications solutions for the international civil aviation community.

C4i is a global leader in Voice Communications in the defence industry. As a small to medium sized technology company based in Melbourne Australia, we develop leading technology for …