Can't make gnokii work

[Rodolfo Medina]

Hi.

I'm looking for a mobile phone management utility that work under
Debian Sarge stable (kernel 2.4). 
I installed `gnokii' with `apt-get', but can't make it work: 
I plug the phone (a Nokia 6630) with its usb cable, 
then start gnokii with:

 $ gnokii --getphonebook SM 1

, but:

 GNOKII Version 0.6.5
 Telephone interface init failed: Command timed out.
 Quitting.

. Please any help? What am I missing?
I want in particular to download data from the phone to the PC.
Thanks,
Rodolfo