Technical gremlins appear inevitable for the nationwide test of the AusAlert emergency warning system, but what they are will have to wait until July 27 at 2pm.

Technical gremlins appear inevitable for the nationwide test of the AusAlert emergency warning system, but what they are will have to wait until July 27 at 2pm.

Millions of phones will sound an emergency alert. For some, that noise could have consequences.

Ten-second ‘siren’ to blare on most phones on Monday as part of national test despite reservations from some states