No sound from Phone call?

So I have the EX buds. When I play music or watch YouTube they work awesome. But when I try to call someone or answer the phone I get no audio from them. I have checked the setting and the EX are set to default device, but still no audio. I have to switch to speaker phone or regular phone mic. Is there a setting that needs to be enabled for these to work? I went into the app for the EX and it is enabled in there as well, but again no audio. Help 😁