(1) If a designated radiocommunications facility is used, or is for use, to supply a carriage service between a point in Australia and one or more other points in Australia, the facility is a network unit .
(2) It does not matter whether the supply involves:
(a) the use of a satellite; or
(b) the use of a line or other facility outside Australia.
(3) For the purposes of this section, a point includes a mobile or potentially mobile point, whether on land, underground, in the atmosphere, in outer space, underwater, at sea or anywhere else.
(4) For the purposes of this section, a point that is:
(b) in or below the stratosphere; and
is taken to be a point in Australia.
(5) For the purposes of this section, a point that is:
is taken to be a point outside Australia.