The coverage extends between 20 to 70 kilometres out to sea from mobile bases situated near the coast. Coverage includes the Great Barrier Reef, the Sydney to Melbourne coast and the Whitsundays.
Telstra's Chief Operations Officer Michael Rocca said, "Boating is a popular Australian past time and with our new offshore coverage maps there's no reason to leave the phone at home and miss out on access to calls and data services."
For best maritime coverage, Telstra recommends customers use a directly connected external antenna mounted as high as possible on the vessel, as a variety of factors influence network coverage and performance at sea including tides, swell and other weather conditions.
For more information about Telstra's new maritime maps service, along with mobile seafaring tips, visit Telstra's Web site.