Chinese and Indian schools use jammers to stop cheaters, Mexico allows their use in churches and hospitals and Pakistan uses the technology in banks and libraries.

It is used in countries including the US to thwart mobile phone-triggered bomb attacks against government leaders. When US President Obama walked down Pennsylvania Avenue after his inauguration, all mobile phones were jammed in the area.

The country's Safe Prisons Communications Bill of 2009 is under consideration which if passed it will introduce a waiver that will allow wireless jammers to be installed in prisons.

ACMA submissions are open for three months and can be sent to LANDS @ acma.gov.au before April 30.