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.

Useful AT Commands

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

Pppd settings

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