When you mute your iPhone, you prevent people on the other end of the line from hearing sound on your end. This is a useful feature in a busy environment where the ambient noise prevents you from hearing each other properly, or when you know you won't be speaking for a while. Muting your iPhone depends on what sound you want to shut out.
Method 1 of 2: Mute your iPhone
Step #1. Use the toggle to quickly mute your ringtone
To quickly mute your ringtone, press the switch above the volume button on the left side of the phone to mute the ringtone.
Note that this only mutes the ringtone and notifications. It will not mute any other sounds your iPhone may make, such as music or alarms
Step 2. Mute an alarm by turning it off
Putting your iPhone in silent mode using the switch will not affect any alarms you have set. The volume of the alarm is linked to the volume of your ringtone, so you can decrease the volume with the volume buttons, but not turn it off.
You can disable an alarm by opening the Clock application, selecting the Alarm tab, and then disabling the alarm
Step 3. Mute music by turning it down during playback
Music isn't affected by the mute button, so you'll need to turn down the volume using the volume buttons or the volume slider in the app that's playing the music. If you turn the volume of the music all the way down, it is actually muted.
During music playback, the volume buttons affect the music volume, not the ringtone volume
Method 2 of 2: Mute yourself during a call
Step 1. Make or receive your call as you normally would
You can mute any phone call using your iPhone.
Step 2. Hold the iPhone further away from your ear
This turns the screen on, as it turns off when the iPhone detects you're holding it to your ear, to avoid accidentally pressing a button.
Step 3. Tap the 'Mute' button to mute a conversation
The 'Mute' button looks like a microphone with a slash through it. If you turn off the call, your iPhone's microphone will be turned off. You can still hear the other person, but the other can't hear you.
Step 4. Press and hold the 'Mute' button to stop the call
This will put the call on hold so you can browse your phone or add another caller.
Not all mobile networks support call waiting
Step 5. Tap the 'Mute' button again to unmute or unmute the call
Once the phone is released from hold, the other person will be able to hear you again.