Bluetooth headphones stop sound during calls

sefranz  This is the same issue I face many times while using the same Bluetooth device with my phone and computer as you know these days Bluetooth are connected to multi-devices this is why I have to remove or disconnect the Bluetooth from other devices was quick to fix and also on the Teams setting making this Bluetooth device as default which you might have it as well but this was a quick fix.

so If I am on the computer and using that Bluetooth device with Teams call it works normally but Bluetooth is turn on my phone since it tried to connect to the phone as well. if I am using Bluetooth with my phone just turn on my phone Bluetooth it works normally even it is still connected to the computer using the small USB for Bluetooth connection.