Correct gnokiirc configuration for nokia 3120 and DKU-5 on Ubuntu 5.10

[A. Andria]

Hi,

I have installed Gnokii 0.6.10 and follow step by step of installation 
and configuration.

I'm using Nokia 3120 with DKU-5. When i try gnokii --identify no model 
known.
My operating system is Ubuntu 5.10

My ~/.gnokiirc is
========================================
[global]
port = /dev/ttyS0 # I don't know which the correct port name on Ubuntu 5.10
model = 6510
initlength = default
connection = dlr3p
use_locking = yes
serial_baudrate = 19200
smsc_timeout = 10

[gnokiid]
bindir = /usr/local/sbin/

[connect_script]
TELEPHONE = +628562269997 # This is my Indonesian GSM Phone Number
[disconnect_script]

[logging]
debug = on
rlpdebug = off
xdebug = off

The Output is :
========================================
GNOKII Version 0.6.10
LOG: debug mask is 0x1
phone instance config:
model: 6510
port_device: /dev/ttyS0
connection_type: 2
init_length: 0
serial_baudrate: 19200
serial_write_usleep: -1
hardware_handshake: 0
require_dcd: 0
smsc_timeout: 100
connect_script:
disconnect_script:
rfcomm_cn: 1
sm_retry: off
Connecting
Serial device: opening device /dev/ttyS0
Serial device: setting RTS to low and DTR to low
Serial device: setting RTS to high and DTR to high
Serial device: setting speed to 19200
Serial device: setting speed to 115200
Getting model...
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Serial device: opening device /dev/ttyS0
Serial device: setting speed to 115200
Serial device: setting RTS to low and DTR to low
Getting model...
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Getting model...
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Identifying...
Message sent: 0x1b / 0x0005
00 01 00 00 41                                  |     A
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
Message sent: 0x1b / 0x0006
00 01 00 07 01 00                               |
SM_Block: exiting the retry loop
IMEI         : (unknown)
Manufacturer : Nokia
Model        : (unknown)
Revision     : (unknown)
Serial device: closing device

Any help would be appreciated.