You can use the Do Not Disturb feature on your iPhone whenever you want to silence any calls, texts, or other notifications.

Your alarm should sound when your iPhone is on vibrate mode, regardless of whether the ringer is turned on or off. Here's how ...

Next, select which sounds you want your iPhone to detect. Tap Sounds and choose from the options provided including fire alarms, smoke detectors, dog barking, appliances beeping, door knocking, and ...