Urgent!!! Bluetooth profile implementation

Dear all,
i'm on the project of mobile handset development which having
the bluetooth connectivity and explicit requiremnent with the
connection with BT headset and having application like file transfer.
we have ready BT chip set and stack now my question is which
profile i have to implement b'cuz according to depedencies i have to
develop General Access profile, serial port profile,headset
profile,Genearl object exchange profile, file transfer profile but as
per my thinking i need only GAP,headset profile and file transfer
bu'cuz we don't have to make serial port in our mobile so we don't
need it and so we don't need RFCOMM or not having use of it, am i
right? Please replies are welcomed!!!!!!!!!!!!!!!
i want some quick reply or advice from the experts.i'm really
thankfull to them who will going to help to come to solution. i really
appreciate them.