To configure your bluetooth device, you should do the following:

Add modules into /etc/modules.conf:

alias net-pf-31 bluez
alias bt-proto-0 l2cap
alias bt-proto-2 sco
alias bt-proto-3 rfcomm

Link your bluetooth device with your computer.

You can see the SDP services with:

$ sdptool browse <bdaddr>

If <bdaddr> and <filename> are given, the file will be send to the device specified with <bdaddr>.

<channel> - The bluetooth channel to use. Lookup the OBEX Push channel with sdptool browse <bdaddr>.

<bdaddr> - The bluetooth address <bdaddr> of the device to send to.

<filename> - The file to send.