Comment 6 for bug 1483890

There seem to be four basic options:

1. Status quo, where Silent Mode does not mute alarms or other essential sounds. Same as: iOS, and Windows Phone 8.1 and earlier. <https://www.windowsphone.com/en-US/How-to/wp8/settings-and-personalization/set-alarms-on-my-phone> Drawback: Occasionally surprising. <http://www.nytimes.com/2012/01/13/nyregion/ringing-finally-stopped-but-concertgoers-alarm-persists.html>

2. Do as this report suggests, where Silent Mode silences alarms. Similar to: Windows 10 Mobile. <http://windows.microsoft.com/en-us/windows-10/getstarted-adjust-volume-mobile> Drawback: Annoying. <https://answers.microsoft.com/en-us/windows/forum/windows_10-windows_store/alarms-in-windows-10-muted/0e8d7326-4f3c-46fa-9d8f-e6b606380b21>

3. Rename "Silent Mode" to "Priority Mode" or similar, to make clear that it doesn't silence everything. Same as: no other system I know of: Drawback: Doesn't actually let you mute alarms.

4. Rename "Silent Mode" to "Priority Mode" or similar, and add a separate "completely silent" mode. Same as: Android 5.0 and later. <https://www.androidpit.com/android-5-1-lollipop-silent-mode> Drawback: Extra complexity makes mistakes more likely (though a Do Not Disturb mode would have introduced that complexity anyway). <https://twitter.com/DirtyCalvinist/status/674807386176000000>

Any other possibilities?