Определить модем помогло wiki:
http://wiki.debian.org/Huawei/E220теперь: dmesg | tail
usb 4-1: new full speed USB device using uhci_hcd and address 3
Jul 16 08:15:52 WARN kernel: [ 169.481797] usb 4-1: configuration #1 chosen from 1 choice
Jul 16 08:17:12 WARN kernel: [ 248.702729] usbcore: registered new interface driver usbserial
Jul 16 08:17:12 WARN kernel: [ 248.703168] /build/buildd/linux-2.6.24/drivers/usb/serial/usb-serial.c: USB Serial support registered for generic
Jul 16 08:17:12 WARN kernel: [ 248.703830] usbserial_generic 4-1:1.0: generic converter detected
Jul 16 08:17:12 WARN kernel: [ 248.704311] usb 4-1: generic converter now attached to ttyUSB0
определило, но модем командой wvdialconf не определяется:
wvdialconf
Editing `/etc/wvdial.conf'.
Scanning your serial ports for a modem.
WvModem<*1>: Cannot set information for serial port.
ttyS0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyS0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyS0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
Modem Port Scan<*1>: S1 S2 S3
WvModem<*1>: Cannot set information for serial port.
ttyUSB0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next try: 9600 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next try: 115200 baud
ttyUSB0<*1>: ATQ0 V1 E1 -- and failed too at 115200, giving up.
а при попытке wvdial с конфигурацией посоветовавшего Leomuz:
--> WvDial: Internet dialer version 1.60
--> Cannot get information for serial port.
--> Initializing modem.
--> Sending: AT+CGDCONT=1,"IP","internet.mts.ru"
--> Sending: ATQ0
--> Re-Sending: AT+CGDCONT=1,"IP","internet.mts.ru"
--> Modem not responding.