I have received one of the same requirement. We want to connect the phone to laptop, so the phone will act as a speaker/mic of laptop.
This feature we have used in 3rd party phones earlier.
Phone is able to pair to laptop, but from laptop we can't connect to phone.
In phone when we press connect, it tries to connect for 5 sec and then shows error "Unable to Connect to <Laptop-Name>". and then drop the connection.
For about 3-4 seconds during this try, in laptop it shows phone is connected. Then disconnected again.