All mobile devices have been tested to operate within the handheld coverage contours of the advertised coverage maps. Mobile telephone coverage depends on where you are, the handset you are using and whether it has an external antenna attached. For tips on maximising your coverage, visit the Maximise Your Coverage page.

Customers should be aware that the Telstra wireless coverage maps displayed have been created using tools that predict the likely areas of coverage. Not every particular location within the identified coverage areas has been individually tested for coverage. This means that while the footprint of coverage outlined on the maps is generally accurate, there will be specific areas described as being within a coverage area where a customer's device will not work. This is a common characteristic of wireless systems. For example, coverage could be degraded or not existent in specific locations due to certain physical structures or geographic features or as a result of the device used. Physical structures which may block or inhibit coverage could include basements, lifts, underground car parks, concrete buildings, tunnels and road cuttings. Geographic features which may block or inhibit coverage could include formations such as hills and mountains or even trees.

Customers should also be aware the Telstra wireless coverage maps also may indicate planned coverage expansions of the Telstra wireless network. Coverage planned for the future is based on Telstra's rollout schedule. Telstra reserves the right to modify this schedule without notice, as required from time to time.

Data speeds experienced on Telstra's wireless networks may be affected by network availability, the type and configuration of customer equipment, the performance of external networks (for example the Internet), the signal strength of the device used and other factors such as the type of application.