How to setup dialup settign for Sri Lanka

Run --> pppconfig as sudu user
Select --> create new connection
Leave the default name "provider"
Select "User Dynamic DNS"
Select "PAP"
Enter the login mane as --> user@pre.sltnet
Replace the password --> passwd
Select the speed as --> 115200 (default)
Select "Tone" dialing
Enter the phone number --> dailupnumber
Select the the modem device as /dev/ttyACM0
Finish the config wizard and exit

To forcefully place the dial-up enter below command in the console --> pon  (to switch off  the dial-up use poff)