Scintillino80 I'm not sure what you're trying to achieve. Please upload a screenshot of your system information and clearly state your issue. Is the SIM card inserted into your phone or into the DUDU device?
If it's the Bluetooth call volume, make a call and adjust the volume during the call—that's the call volume. Future calls will remember this volume setting.
If you wish to connect your phone via Bluetooth, you can either use DUDU to search for your phone or use your phone to search for DUDUAUTO. To use DUDU to find your phone, you must enable Bluetooth SSID broadcasting; otherwise, no device will be able to detect your phone.
