Callers hear echo when I use bluetooth headphones
People I'm speaking with on the phone while using my bluetooth headphones have been saying that they can hear their own voice echoing while they're speaking with me. I have a fully updated iPhone 11 and Sony bluetooth headphones. This problem started recently, and doesn't occur when I'm using my phone without headphones, or when I'm using my headphones with a different device. I have reset the settings on both my phone and my headphones with no luck. Thanks in advance for any help!
iPhone 11