A statement from Optus said it would provide the foundation for CSR's technology transformation and help the latter prepare for a more digitally-enabled future.
The solution provided by Optus will allow CSR to combine voice, video and data applications on a single network. A mobility solution for CSR employees would encourage users to use mobile ways of working.
Optus Business managing director John Paitaridis said: “Technology is changing the way we work and how businesses operate and it’s all underpinned by the need for a resilient, high-capacity, scalable enterprise-grade network.
Craig Buttriss, CSR’s general manager of Enterprise IT, said: “CSR is continuing to reinvest in its technology to deliver the best experience for our people and customers.
“We recognise the importance of data for our business and needed a network which is scalable and cost competitive to meet our future business requirements.
“Optus Business’ services will provide us with the strong foundations for our IT strategy which can support not only our business requirements today, but also those of the future as we continue to develop new products and better experiences for CSR customers.”