Don't know why but I expected that with a Bluetooth headset (Jabra Stealth) connected, the ringtone would come from the Headset not the phone. BUT the phone still rings even with the phone connected. Predictably, Jabra support say it's a problem with the S21, Samsung support say it's a problem with the Jabra. Obviously I can mute the phone manually after connecting the headset but that means remembering to 'unmute' it when I take the Headset off, not the hardest job in the world but a pain nonetheless. Any ideas welcomed.