Apple has replaced the Ringer/Mute switch on the iPhone 15 Pro series with a new Action button. This article explains how to customize and use the iPhone's Action button.
How to Use iPhone 15 Pro & Pro Max Action Button – Setup & Customize
To use the iPhone action button, you'll first need to decide what action should be triggered when you press it. By default, the action button serves to silence your iPhone's ringtone, which is exactly what the mute switch it replaces used to do. But that's far from the only thing it can do. There are a number of pre-built options for the action button, including one that gives you nearly infinite flexibility.
To customize the iPhone action button, follow these steps:
Swipe from left to right to choose what you want to happen when you long-press the Action button. The options are:
