Here is the issue I am having. I purchased a Stylo 4. Since day one I have had an issue with the call quality when using the phone app. When using Bluetooth on a call, there is a staticky/crackling sound when the other person talks. And the background noise from there end created really bad crackling/staticky sound. Now this only happens when using the phone app and using Blutooth. If I use wired headphones or just talk through the hand set there is no crackling or static. Also when calling someone using Bluetooth using a web based app like WhatsApp, there is no static or crackling. I have already sent my phone in once to be repaired and it came back with speaker/receiver replaced but the problem is still there. I am so aggravated with this. Does anyone have any experience with this?