how to establish sound connection from Nokia E51 to laptop

How can I use the laptop speakers to listen to a phone call on Nokia
E51, specially during conference calls? and same of course for
listening to ANY sound on the mobile to be played on the laptop PC
speakers? I use USB cable and Bluetooth to connect.
I remember seeing an option for that in the bluetooth setup
("services") in previous PCs where I installed an external BlueTooth
stick, but in my Deel Latitude with BleTooth Stack for Windows by
Toshiba v6, there is nothing like that...
Wim