How to mute the ringtone of iphone 6s?

On the top left of your mobile phone, near the volume button, there is a small mechanism (as shown in the picture, it is silent).

Or enter "Settings" from the main interface.

Find "Voice" and click Enter.

Then slide the volume of the bell to the far left.

The humanized design of Apple's mobile phone is embodied by the mute button, which specially provides a convenient way for people to let your mobile phone quickly enter the mute mode. Most people will choose this convenient way to "mute" their mobile phones.