Bluetooth connection authorization

Hi all, what’s the way to know when a bluetooth device(like cell phone) asks for bluetooth connect?
For example, when a cell send a txt note to another cell, receipient cell have to accept for take this note.
There is a way to know when happens this? I think a something like a bluetooth listener.

There is no way?

not sure if u still need a reply to this?
the phone that discovers the other device, that then trys to connect to the other
phone should make that phone alert the user (its automatic).