Originally Posted by
birdstrike
The problem is that you are not going to be able to get an entire planeload of pax to obediently stop their phone conversation in the moment between "taxi into position and hold" and "cleared for takeoff".
On some recent AA flights, I've noticed that some FAs have provided an announcement that served as a form of "early warning" that the cutoff was approaching in 10 minutes (mostly when nearing arrival, but also once or twice before departure as well). I suspect that these were cases of the individual FAs taking the initiative, as such early announcements have been the exception, not the rule.