Huawei e3131 + T-MOBILE

lsusb:

Bus 003 Device 005: ID 12d1:1506 Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard

dmesg:

usb 3-2: GSM modem (1-port) converter now attached to ttyUSB0
usb 3-2: new high-speed USB device number 4 using xhci_hcd
usb 3-2: New USB device found, idVendor=12d1, idProduct=14fe
usb 3-2: New USB device strings: Mfr=2, Product=1, SerialNumber=0
usb 3-2: Product: HUAWEI Mobile
usb 3-2: Manufacturer: HUAWEI

Na webu T-Mobile pri vyhledavani slova Linux toho moc neni, ale je tam AT prikaz pro modem:
AT+CGDCONT=1,"IP","internet.t-mobile.cz"

takze po vytvoreni konfiguraku /etc/wvdial.conf:

[Dialer Defaults]
Init1 = AT+CGDCONT=1,"IP","internet.t-mobile.cz"
Init2 =
Init3 =
Stupid Mode = 1
Ask Password = 0
Phone = *99***1#
Modem = /dev/ttyUSB0
Username = neco
Password = neco
Baud = 9600
Auto DNS = yes
Dial Command = ATDT

a spusteni prikazu wvdial, se to pripojilo, nastavilo se ppp0 i routa, funguje.