Help a beginner? Changing the visible name

[Jonathan Laventhol]

Hi All --

I've just managed to get my bluetooth system running to accept
incoming files from a phone.  But I have a problem which I'm
sure is very simple to solve but have had no luck: how do I
change the name of my computer which my phone sees?  Currently
the computer shows up as its hostname (web1.example.com),
but I want it to say something like 'projector'.

Any kind soul help out?

I'm running this:
/usr/local/bin/obexapp -s -C 10 -r /usr/local/www/data -u www

dmesg says:
ubt0: Broadcom Corp BELKIN BLUETOOTH USB ADAPTER CL. 2, rev 2.00/1.00, 
addr 2
ubt0: Broadcom Corp BELKIN BLUETOOTH USB ADAPTER CL. 2, rev 2.00/1.00, 
addr 2
ubt0: Interface 0 endpoints: interrupt=0x81, bulk-in=0x82, bulk-out=0x2
ubt0: Interface 1 (alt.config 5) endpoints: isoc-in=0x83, isoc-out=0x3; 
wMaxPacketSize=49; nframes=6, buffer size=294

It's FreeBSD 6.1 with these packages:
obexapp-1.4.4_1     Obex application to transfer objects to mobile equipment
openobex-1.3        Open source implementation of the OBEX protocol


Many thanks,
Jonathan.