mobile virtual network operator(в отличие от carrier – оператора с собственной инфраструктурой: There are only three Australian mobile carriers; Telstra, Optus and Vodafone. Other providers are known as Mobile Virtual Network Operators (MVNO) and these operate on the networks of Telstra, Optus or Vodafone. Information requests should be made to the relevant network, i.e. Telstra, Optus or Vodafone.)
mobile telecommunications network(Public mobile telecommunications networks of which there are 3 in Australia
(Telstra, Optus and Vodafone) are extensions of the main fixed network that is
often referred to as the PSTN (public switched telephone network).gov.au)
