A telephone call from the Central Australian desert to Canberra yesterday marked the opening of Optus’s new Australia-wide satellite mobile telephone service, MobileSat.
The call was put through to the Minister for Communications, Michael Lee, from a phone in a car near Uluru (Ayers Rock). The signal was bounced off an Optus satellite 36,000 kilometres above the earth to a ground receiving station and into the general network.
The service is the first of its kind in the world and was designed and built in Australia. Present satellite phone services use stop-point-and-setup technology and are much more expensive. Present radio-based services are less reliable and can be intercepted easily.
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