It might mute a call if you are making a phone call on your cell, I havent tried that, but it will not mute a PC conference call. You can keep the phone in your pocket while talking and the call does not drop. They look better now, and still stay on my feet anyway. This is my second pair of Eric Michaels slip on shoes. Its nice to be able to go outside in them and not get your feet wet. Theyre quite good and add new enemies and challenges. Its like wearing a second skin and after a short whole its barely noticeable that youre wearing it. Ho acquistato questi sandali per mia figlia per usarli al mare o in piscina. There was cellophane tape pasted all over the headphones and the box casing was completely ruined. Have been very happy with this brand in the past but not with these shoes.