How to PPP support for LTE modem connected over USB

[NP_it]

I have added all required dependencies that I am able to detect the module and allocate with udev rules as modem_1..4 . I have also added ppp feature, but despite that when i dial, it shows some error as indiscipline and here is a log from /var/log/syslog

How do i fix this ?

[MWoło.2]

Hi,

You need to prepare ppp operator file and chatscript correctly.

Show the content of this both files.