The center button on the Apple EarPods can be used to answer and disconnect calls (single press), put the present caller on hold to receive an incoming call (single press) and divert to voice mail (press and hold till you hear a beep sound).
The center button on the Apple EarPods can be used to answer and disconnect calls (single press), put the present caller on hold to receive an incoming call (single press) and divert to voice mail (press and hold till you hear a beep sound).