The kiddies have been using ultrasonic ringtones to secretly take calls/texts in class since 2006, but if you're an adult who can still hear these frequencies then by all means head over to Lifehacker for some of your own [Lifehacker]
12 Ultrasonic Ringtones For Your Nearly-Silent Listening Pleasure
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Moving over to the NBN will soon (hopefully) be an easier and more transparent process, thanks to new rules for telecommunications companies released today by the ACMA.
The ACCC just issued two fines, totalling $25,200, to NBN provider MyRepublic for "alleged false or misleading representations about its NBN service performance".