if your volume control doesn't work on your phone you can use this little trick to mute your phone.
Step 1: Gather and Make
all you need is an old pair of headphones and wire cutters.
Cut the end off of the cord as shown. and your done
Step 2: Done
plug the device into your audio jack and it will make the device think that you have headphones in so it will send the audio to the "headphones" in return your phone will be quiet. thank you for reading this Instructable.