Answering and Ending Phone Calls
The touchpad controls will operate differently while you're on a phone call, rather than listening to music:
Answer or End a Call: Double Tap
Decline an incoming phone call: Tap and Hold
Mute the call: Tap and hold while on a call to turn off the microphone so the other party can't hear you.
Answer a second Call: When a 2nd call comes in, the earbuds will make a sound to alert you.
Retrieve a held Call: Tap and hold after ending the current call.
Thanks Colin, but what we mean is that this works while receiving a phone call, but it doesn`t work when receiving a Whatsapp/duo call.
Could be wrong on this...but tried it out and doesn’t work with WhatsApp could be something to do with WhatsApp itself. What about the wired head phones?? Will it allow you to answer
I had a similar issue but only the first time I paired them, you should see the bluetooth icon in whatsapp when you having the call, tape on it, and it should work