The "answer" button on earbuds? How does it work?

Thread Starter


Joined Apr 14, 2011
Hey all,

I am wondering how the "answer the call"/"pause" button works on my earbuds.

I have an iphone and am using a 3rd party set of earbuds and enjoy the fact that when I hear my phone ring through the earbuds, I can press a button and voila, I am answering the call.

But, I don't know exactly how it works?

Part of why I am curious is I am trying to design a really low budget way of finding out if my phone is ringing (at a club or something) from a distance using ______ (however the heck I figure out how to detect a call) and some Zigby footwork.

What do you think?

All thoughts appreciated