The option to select a sound channel for notifications is very lacking. Now many people use BT-headsets with phones and tablets.
These headsets are permanently connected and therefore all sound notifications from upcoming events in
Business Calendar 2 can only be heard through a connected BT headset. Because of this, it is very easy to miss an event in Business Calendar 2 when the BT headset is not in your ears.
Alternative applications for creating event notifications have the option to select the sound channel for notifications and, for example, you can select the sound channel for notifications "like an alarm clock". In such a situation, sound notifications can be heard both in the BT headset and through the phone speaker. This is very convenient and is sorely lacking in Business Calendar 2!
Dear developer, please add this option to your application.