How to install Huawei Mobile Broadband EC 306 EVDO RevB in Ubuntu 12.04 LTS 64bit ?

Best Regards

Excuses me for my bad english

When I connect the modem on ubuntu, it fails to mount system and furthermore it is not recognized as a CD-ROM.

I is not installed Windows on my computer, but I try to open the modem under Windows on a PC friend, There is no script file called "Linux", but only Windows.

lsusb :

serviteur@creation:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 002: ID 15d9:0a4c Trust International B.V. USB+PS/2 Optical Mouse
Bus 001 Device 007: ID 12d1:1506 Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard

dmesg

Q: 0 ANSI: 2
[16619.060771] sr1: scsi-1 drive
[16619.060955] sr 13:0:0:0: Attached scsi CD-ROM sr1
[16619.061099] sr 13:0:0:0: Attached scsi generic sg3 type 5
[16619.061358] sd 14:0:0:0: Attached scsi generic sg4 type 0
[16619.063654] sd 14:0:0:0: [sdc] Attached SCSI removable disk
[16634.224923] usb 1-6: USB disconnect, device number 6
[16638.468041] usb 1-6: new high-speed USB device number 7 using ehci_hcd
[16638.586210] option 1-6:1.0: GSM modem (1-port) converter detected
[16638.586316] usb 1-6: GSM modem (1-port) converter now attached to ttyUSB0
[16638.586435] option 1-6:1.1: GSM modem (1-port) converter detected
[16638.586517] usb 1-6: GSM modem (1-port) converter now attached to ttyUSB1
[16638.586607] option 1-6:1.2: GSM modem (1-port) converter detected
[16638.586676] usb 1-6: GSM modem (1-port) converter now attached to ttyUSB2
[16638.586752] option 1-6:1.3: GSM modem (1-port) converter detected
[16638.586828] usb 1-6: GSM modem (1-port) converter now attached to ttyUSB3
[16638.586929] option 1-6:1.4: GSM modem (1-port) converter detected
[16638.586997] usb 1-6: GSM modem (1-port) converter now attached to ttyUSB4
[16638.587114] option 1-6:1.5: GSM modem (1-port) converter detected
[16638.587187] usb 1-6: GSM modem (1-port) converter now attached to ttyUSB5
[16638.646686] option1 ttyUSB5: GSM modem (1-port) converter now disconnected from ttyUSB5
[16638.646706] option 1-6:1.5: device disconnected
[16638.660755] scsi15 : usb-storage 1-6:1.5
[16638.663284] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[16638.663301] option 1-6:1.4: device disconnected
[16638.689043] scsi16 : usb-storage 1-6:1.4