@roberts_lando Hi, I've done all the steps to configure the internet connection but when I type "ifconfig" it doesn't show me the ppp0 interface. Could you please help me?

when I type the command "cat /var/log/syslog" It show me this messages:

Sep 4 13:41:52 raspberrypi pppd[1698]: pppd 2.4.7 started by root, uid 0
Sep 4 13:41:52 raspberrypi chat[1702]: abort on (BUSY)
Sep 4 13:41:52 raspberrypi chat[1702]: abort on (VOICE)
Sep 4 13:41:52 raspberrypi chat[1702]: abort on (NO CARRIER)
Sep 4 13:41:52 raspberrypi chat[1702]: abort on (NO DIALTONE)
Sep 4 13:41:52 raspberrypi chat[1702]: abort on (NO DIAL TONE)
Sep 4 13:41:52 raspberrypi chat[1702]: abort on (NO ANSWER)
Sep 4 13:41:52 raspberrypi chat[1702]: abort on (DELAYED)
Sep 4 13:41:52 raspberrypi chat[1702]: abort on (ERROR)
Sep 4 13:41:52 raspberrypi chat[1702]: abort on (+CGATT: 0)
Sep 4 13:41:52 raspberrypi chat[1702]: send (AT^M)
Sep 4 13:41:52 raspberrypi chat[1702]: timeout set to 12 seconds
Sep 4 13:41:52 raspberrypi chat[1702]: expect (OK)
Sep 4 13:42:04 raspberrypi chat[1702]: alarm
Sep 4 13:42:04 raspberrypi chat[1702]: Failed
Sep 4 13:42:04 raspberrypi pppd[1698]: Connect script failed
Sep 4 13:42:10 raspberrypi OWFS[477]: DEFAULT: ow_reconnect.c:(72) DS2482-100 bus master reconnected
Sep 4 13:42:30 raspberrypi OWFS[477]: DEFAULT: ow_reconnect.c:(72) DS2482-100 bus master reconnected