Siri is a smart virtual assistant, and with iOS 9; it has gone smarter. We all have used features of Siri in one or the other way. From getting directions to set an alarm, or read an email, we use Siri all the time. My personal favorite is to get directions to nearest Pizza parlor, what's yours?
The new iPhone 6s series has “Always On” Siri feature, which means Siri is always listening to what you say. There are times when you don't want vocal assistant, but want Siri to help you with commands or queries you shoot at it. This feature comes in handy in many situations like in movie or in a meeting.
This feature can also be controlled by hardware; that is the mute switch you have on your iPhone or iPad. It is very easy to set it up through Settings, just check the guide below for more details.
How to Silence Siri with Ring Button on iPhone/iPad
Step #1. Open Settings app from home screen → Tap on General.
Step #3. Now tap on “Control with Ring Switch“; the mute button is officially called ring switch by Apple.
Exit Settings and now you will be able to mute or Unmute Siri using mute switch. Siri will keep functioning as it used to, but without vocal assistant; if the mute switch is turned ON. Once you turn it OFF Siri will start talking again.