USING LINUX
Using Linux
Shell Commands
Testing Serial Ports
To test the serial ports created by the driver, type in a shell:
cat /dev/ttyUSBx &
#echo
#echo
Note: Sending ATE0 is required, to avoid issues in the terminal output. It prevents the sending/receiving spurious characters to/from the modem when used with the Linux commands “echo” and “cat”
Create a PPP Connection
Most recent Linux distributions have GUI tools for creating PPP connections; the following instructions are for creating a PPP connection through command line interface.
PPP support must be compiled into the kernel; pppd and chat programs are also required.
pppd needs two scripts: the first script performs the environment setting and calls the second script, which is used by the chat program. For creating a PPP connection type:
# pppd file /etc/pppd_script &
Example
#Debug info from pppd debug
#kdebug 4
#Most phones don't reply to LCP echos
#Keep pppd attached to the terminal
#Comment this to get daemon mode pppd nodetach
#The chat script (be sure to edit that file, too!)
connect "/usr/sbin/chat
#Serial Device to which the modem is connected /dev/ttyUSBttyACM
#Serial port line speed
115200 dump
#The phone is not required to authenticate #noauth
user <insert here the correct username for authentication> name <insert here the name of the connection>
password <insert here the correct password for authentication>
#If you want to use the
12 | QuickCarrierTM |