Darwin Airport is the first to take part in a trial of Telstra's new "Hotspot Webphones" with two installed as part of a four-month assessment of the technology.
The Webphones allow travelers to browse the web, make phone calls and send text messages. The technology was made in Australia and was developed by Western Australian company Pie Networks.
The devices have also been installed in the Qantas terminal in Perth as well as Southern Cross Railway Station and Tullamarine Airport in Melbourne.
Telstra corporate affairs manager, Jane de Gault, said the feedback so far had been positive.
"People say they like the large, easy-to-use touch-screen and full-size keyboard," she said in a statement.