Telstra and Motorola will start designing, building and operating Queensland's government wireless network after the $457.3 million deal was confirmed today.

The 15-year managed services partnership is designed to vastly improve the government's communications infrastructure for the state's public safety agencies.

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The network, based on Motorola Solutions' public safety communication technology, will provide enhanced digital communication and better coverage at key public locations for police, fire and ambulance officers.

It also will allow agencies to communicate better, faster and more securely than ever before using digital radio voice and narrowband data communications.

Telstra director, Chris Pearce said he looked forward to building a system that would provide better and functionality for fire, police and ambulance services.

The Government Wireless Network will initially be rolled out in Brisbane, the Gold Coast and Cairns as the Sunshine State readies itself to play host to the G20 Summit meetings in 2014.

It will extend to the rest of the South-East in time for the 2018 Commonwealth Games on the Gold Coast.

Motorola vice president Gary Starr said it was a very significant project for Queensland.

"(It) demonstrates our commitment to ensuring the highest levels of safety not only for our communities, but also for the thousands of emergency responders that put their lives on the line every day to protect them."