(07-08-2025, 12:59 PM)sahgwa Wrote: If I sleep with my cell phone off are these warning systems able to ping it and sound an alarm through it anyway?
If I may interject...
Certain signals, like civil emergency alarms have been said to "wake up" a sleeping, powered-off cell phone.
I have only heard of this... never experienced it...
However, if it was your objective to isolate your phone from outside signals... just use the packaging from a bag of potato chips, or other snack - as long as it is made of Mylar (as many are) it should work to avoid pings and signals.
That material is very effective at blocking signals... try it some day... with this warning...
Theoretically, you will miss updates and messages.. which could make it slow to resume normal operation... and your location in the cell system should need re-acquiring for service...
I suspect if everyone did this, they would make Mylar packaging illegal.
