The problem I described happened many times these last 6 days. I made extra sure it was on silent each time (it was). I was pretty sure anyhow since I pretty much perpetually leave it on silent.
Maybe it's a quirk of this particular model (iPhone 5), or some sort of bug, but it's definitely making the low battery sound while physical switch is set to mute.
Re:Ask HN: Do you turn your phone off ever?
by logicallee on Tuesday May 16, 2017 @05:30PM
(#14353462)
>The only sound that plays is sound that you specifically asked for, like [...] sound from badly behaving apps.
Re:Ask HN: Do you turn your phone off ever?
by logicallee on Wednesday May 17, 2017 @07:09AM
(#14357309)
This got downvoted, so let me rephrase:
"Unfortunately, where you listed the example of 'badly behaving apps' as one of the sounds it does play, this shows that in many cases the only way to be sure that it will not play sounds is to turn the power off. That is the only way to know this will not happen."
The only sound that plays is sound that you specifically asked for, like music or sound from a video, the alarm and sound from badly behaving apps.