I'm on the phone and my cell phone is connected to my UE-Bomm but the music is playing on my cell phone, I can change that (I have a Huawei cell phone)
Do you want your music to continue running through the box and he to call on the cell phone?
On my Samsung Note 10, I have the function of running calls via my mobile phone when I'm connected to a Bluetooth device. (Is in the Bluetooth settings of the cell phone)
I have no special Bluetooth settings, with Bluetooth I can only connect and decouple
I was watching. I can select the device (music box) again under the Bluetooth settings and go there again in the settings and then specify what I want the connection for
Maybe look under sound settings in mobile phone.