====== Huawei E1550 on Linux ======

Packages:
  * ''usb-modeswitch'' -> Switch into Modem mode
  * ''gammu'' -> Send SMS
  * ''wvdial'' -> Connect to the Internet

Sources:
  * http://wiki.archlinux.org/index.php/Huawei_E1550_3G_modem

Debian Sid should auto switch the device into modem + CD-ROM mode.

===== Udev Naming =====

Based on the [[http://wiki.archlinux.org/index.php/Huawei_E1550_3G_modem|Arch Linux wiki]], this is my (simplified) version:

''/etc/udev/rules/z90-e1550.rules'':
<code>SUBSYSTEMS=="usb", DRIVERS=="option", KERNEL=="ttyUSB*", ATTRS{bInterfaceNumber}=="00", ATTRS{bInterfaceProtocol}=="ff", SYMLINK+="e1550_modem"
SUBSYSTEMS=="usb", DRIVERS=="option", KERNEL=="ttyUSB*", ATTRS{bInterfaceNumber}=="01", ATTRS{bInterfaceProtocol}=="ff", SYMLINK+="e1550_diag"
SUBSYSTEMS=="usb", DRIVERS=="option", KERNEL=="ttyUSB*", ATTRS{bInterfaceNumber}=="02", ATTRS{bInterfaceProtocol}=="ff", SYMLINK+="e1550_pcui"</code>

Re-create device nodes with ''# udevadm trigger'' and the symlinks should be created.

===== Sending SMS =====

'' $ gammu sendsms TEXT +3461234567 -text 'Hello World!' ''

===== Internet Access =====

''/etc/wvdial.conf'', example for Simyo (Spain):
<code>[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2
Modem Type = USB Modem
Baud = 460800
New PPPD = yes
Modem = /dev/e1550_modem
ISDN = 0
Dial Command = ATDT

[Dialer Simyo]
Modem = /dev/e1550_modem
Init9 = AT+CGDCONT=1,"IP","gprs-service.com"
Phone = *99***1#
Stupid Mode = 1
Ask Password = 0
Idle Seconds = 3000
Auto DNS = 1
Password = 1234
Username = 1234</code>

Replace ''gprs-service.com'' with your APN. Set Username and Password if required.

Connect with ''$ sudo wvdial Simyo''