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

Discussion in 'General Electronics Chat' started by breegeek, Apr 17, 2011.

  1. breegeek

    Thread Starter New Member

    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