The new network, to be integrated by NSC enterprise solutions, will replace the company's 14 year old ICT infrastructure following an audit last year.

Timeliness of installation is also critical as the company enters its busiest period, with its Sydney and Melbourne call centers between them expecting to serve about 700 enquiries daily.

Opera Australia IT manager Grant Cresswell said the high speed network will incorporate its VOIP plans and its existing CRM database Tessitura.

"[The network provides] a low risk, cost effective and flexible method of refreshing our communication technology to expand the range of applications available within the organization," Cresswell said.

The VOIP network will use Avaya communication manager 3.1 running on an S8300 media server with G700 gateways along with about 150 IP phones.