earphones not working for iPhone 12 SE phone conversation but working for music

Hi atcoord,

Thank you for posting to Apple Support Communities.

If you’re experiencing issues with your headphones with some apps but not all of them, there are some steps you can take. These steps will walk you through how to check for debris and other things that can cause these issues. Here's how to do this:

1. "Check for debris in the headphone port on your iPhone, iPad or iPod touch. 
2. Check your headphone cable, connector, remote, and earbuds for damage, like wear or breakage. 
3. Look for debris on the meshes in each earbud. To remove debris, gently brush all openings with a small, soft-bristled brush that's clean and dry. 
4. Firmly plug your headphones back in. If your iOS device has a case, remove the case to get a firm connection. "

This information is provided in If your headphones don't work with your iPhone, iPad, or iPod touch.

If those steps don’t help, try testing some other headphones.

Take care.