Prior to Telstra's announcement, the ACA sent out a letter to suppliers of the illegal devices warning them of possible legal action and demanding a full list of all Australian customers supplied with boosters.
"The ACA is concerned that the use of non-compliant boosters is significantly reducing the coverage area of mobile cells and interfering with calls," ACA chairman Tony Shaw said.
Penalties for the use of illegal boosters include fines and imprisonment.
Telstra admitted its ability to provide the best service possible to customers was being jeopardised by the interference to the CDMA network.
After significant testing, Telstra found CDMA booster kits did not improve coverage or performance over the use of an ordinary roof-mounted vehicle antenna. Furthermore, the kits caused significant interference to the network, Telstra said.
-Illegal boosters play havoc with the CDMA network and reduce the coverage and call quality for other customers," Telstra Country Wide Area General Manager Andrew Cottrill said.
-Telstra has already identified boosters are being used in the Deniliquin, Hay, Hillston and Jerilderie areas where a high proportion of call drop-outs have been observed," Mr Cottrill said
Telstra recommends customers install an external antenna with a car kit or utilise a patch cord to maximise the coverage of a CDMA phone.
If this system was as good as the promotion of it no one would have the slightest interest in PAYING money for a booster in a desperate attempt to to get signal.