Nokia Digital Pen SU-1B - Manual (Page 11)

Getting started
11 Copyright © 2003 Nokia. All rights reserved.
In Nokia phones, this can be done by changing your paired devices settings in
the Bluetooth menu.
5. Start using the pen.
Note that the Bluetooth connection between the Nokia Digital Pen and the
compatible phone is active only when the Nokia Digital Pen is sending data to the
phone.