Odd mic behavior with bluetooth headphones?

I am currently using the bluetooth Samsung Level U Pro set of headphones that have a built in mic. For Cortana, I can speak (usually) and everything is fine. However, after the first couple months of owning the headphones, the mic no longer really works for phone calls. The incoming audio is fine, but the person on the other end can't hear when I speak. Additionally, I get a background beep - sometimes faint, and sometimes at the same volume as the call - that sounds like the old call waiting beep on landlines.

I'm trying to figure out if this is just an issue with this particular model and W10M, or if it's something to do with the bluetooth on the phone. Has anyone else encountered this with other bluetooth devices?

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