So, my simple deduction - it does not have, and never has had, any safety issues whatsoever.
Hahaha You may well duck for cover, Sam.
I can tell you that it's a real pain in the ass, (and in the ears) for the Flight Crew when 20 odd mobiles are trying to make a connection as you pass 2000-3000' during a complex SID, and then another in the baggage hold sets off the smoke alarm.
MJ