changes in the prices paid for telecommunications services australia 1997 98 to 2003 04 report minister communications information technology and arts march 2005 commonwealth of isbn 1 920702 66 0 this work is copyright apart from any use as permitted under act 1968 no part may be reproduced without prior permission australian competition consumer commission requests inquiries concerning reproduction rights should addressed director publishing po box 1199 dickson 2602 produced by accc unit 03 05 contents summary 6 main pstn source data supplied telstra aapt primus singtel optus except 2 7 mobile structure 8 methodology determining price change 10 index model telephony other issues 11 real goods tax gst