Vertex VW110L - Ufon

This article details the configuration and use of the Vertex VW110L modem for the U:Fon service.

Getting modem device

Install usb_modeswitch and usbutils
Comment or remove line from /lib/udev/rules.d/61-option-modem-modeswitch.rules where idVendor is 05c6 and idProduct is 1000 (keep eye on it after udev update)
reload udev rules - udevadm control --reload-rules and udevadm trigger
Plug Vertex modem in and wait for few second until red LED on the edge of modem change color to blue

Now you should be able to access /dev/ttyACM0 device.

Try screen or minicom to send AT commands to your modem.

AT+CSQ - signal strength (first number) - https://www.gprsmodems.co.uk/images/csq1.pdf
ATI - modem info

Create necessary files:

/etc/ppp/ufon

TIMEOUT 8
ABORT BUSY
ABORT "NO CARRIER"
ABORT ERROR
"" 'AT'
OK ATD#777
CONNECT \d\c

/etc/ppp/peers/ufon

connect "chat -v -f /etc/ppp/ufon"
ttyACM0
921600
crtscts
persist
usepeerdns
defaultroute
name ufon
ipparam ufon
noauth

and manage connection with pon ufon for connecting and poff ufon for disconnecting

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