New PPPD = yes
Phone = *99#
Username = usually
Password = ignored
Stupid Mode = 1
Dial Command = ATDT
Modem = /dev/ttyACM0
Baud = 460800
Init2 = ATZ
Init3 = AT+CGDCONT=1,"IP","Internet"
ISDN = 0
Modem Type = Analog Modem
If your sim card requires a pin before use, you can try adding the line:
Init4 = AT+CPIN=replace_with_your_pin
To do a modeswitch if your device appears as a stupid compact disc device:
1. lsusb and find the device
Mine for eg: Bus 001 Device 010: ID 12d1:1436 Huawei Technologies Co., Ltd.
2. Your vendor/product ID's should be the ones before the name, eg in mine. 12d1:1436
usb_modeswitch -v 12d1 -p 1436
If all looks good a simple of wvdial should work or let you know if you need to tweak a bit more...