Why can't I hear a call when I have a anti dust plug in my Nokia Lumia 521?

[Windows Central Question]

why can't I hear a call when I have a anti dust plug in my nokia lumia 521

I can't hear the caller on the other end

 

[jmshub]

Re: why can't I hear a call when I have a anti dust plug in my nokia lumia 521

It sounds like your dust plug is activating the headphone switch, so your phone thinks there are headphones plugged in.