Pen Huawei E156G (TMN) em Ubuntu

[LuisC]

Instalei o wvdial e tentei configurar a rede, mas ainda não me consigo ligar à Net.
Fiz:

Código:

luis@ubuntu:~$ lsusb
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 002: ID 04f2:b008 Chicony Electronics Co., Ltd USB 2.0 Camera
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0458:003a KYE Systems Corp. (Mouse Systems)
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 12d1:1003 Huawei Technologies Co., Ltd. E220 HSDPA Modem / E270 HSDPA/HSUPA Modem
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
luis@ubuntu:~$ modprobe usbserial vendor=0x12d1 product=0x1003

Depois, instalei o wvdial e editei o ficheiro /etc/wvdial.conf:

Código:

[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Modem Type = Analog Modem
Baud = 9600
New PPPD = yes
Modem = /dev/ttyUSB0
ISDN = 0
; Phone = <Target Phone Number>
; Password = <Your Password>
; Username = <Your Login Name>

[Dialer tmn]
Modem = /dev/ttyUSB0
Stupid Mode = 1
Dial Command = ATDT
Phone = *99#
Baud = 460800
ISDN = 0
Init1 = AT
Init2 = ATZ
#Init3 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASSRM=0
Init4 = AT+CGDCONT=1,"IP","internet"
Username = tmn
Password = tmn
Modem Type = Analog Modem

Quando me tento ligar, aparece-me o seguinte output:

Código:

luis@ubuntu:~$ wvdial tmn
--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: AT
--> Sending: ATQ0
--> Re-Sending: AT
--> Modem not responding.
luis@ubuntu:~$

Agradeço desde já qualquer ajuda!