Если отладку смотреть в сюслог, то там так
]# cat /var/log/syslog/messages | grep chat
Jun 26 22:25:09 asus-notebook chat[14869]: abort on (\nBUSY\r)
Jun 26 22:25:09 asus-notebook chat[14869]: abort on (\nERROR\r)
Jun 26 22:25:09 asus-notebook chat[14869]: abort on (\nNOANSER\r)
Jun 26 22:25:09 asus-notebook chat[14869]: abort on (\nNO CARRIER\r)
Jun 26 22:25:09 asus-notebook chat[14869]: abort on (\nNO DIALTONE\r)
Jun 26 22:25:09 asus-notebook chat[14869]: abort on (\nRINGING\r\n\r\nRINGING\r)
Jun 26 22:25:09 asus-notebook chat[14869]: timeout set to 60 seconds
Jun 26 22:25:09 asus-notebook chat[14869]: expect (OK)
Jun 26 22:26:09 asus-notebook chat[14869]: alarm
Jun 26 22:26:09 asus-notebook chat[14869]: Failed
Jun 26 22:26:09 asus-notebook pppd[14867]: Script /usr/sbin/chat -e -v -f /etc/ppp/chat-beeline finished (pid 14869), status = 0x3
~]# cat /var/log/syslog/messages | grep ppp
Jun 26 22:26:09 asus-notebook pppd[14867]: Script /usr/sbin/chat -e -v -f /etc/ppp/chat-beeline finished (pid 14869), status = 0x3
Jun 26 22:26:09 asus-notebook pppd[14867]: Connect script failed
Jun 26 22:26:10 asus-notebook pppd[14867]: Modem hangup
Jun 26 22:26:10 asus-notebook pppd[14867]: Connection terminated.
Jun 26 22:26:10 asus-notebook pppd[14867]: Exit.
P.S.через networkmanager подключаюсь,
~]# cat /var/log/syslog/messages | grep ppp
Jun 26 22:31:51 asus-notebook NetworkManager[5462]: <info> pppd started with pid 15180
Jun 26 22:31:51 asus-notebook pppd[15180]: Plugin /usr/lib/pppd/2.4.5/nm-pppd-plugin.so loaded.
Jun 26 22:31:51 asus-notebook pppd[15180]: pppd 2.4.5 started by root, uid 0
Jun 26 22:31:51 asus-notebook pppd[15180]: Using interface ppp0
Jun 26 22:31:51 asus-notebook pppd[15180]: Connect: ppp0 <--> /dev/ttyUSB2
Jun 26 22:31:51 asus-notebook pppd[15180]: CHAP authentication succeeded
Jun 26 22:31:51 asus-notebook pppd[15180]: CHAP authentication succeeded
Jun 26 22:31:55 asus-notebook pppd[15180]: Could not determine remote IP address: defaulting to 10.64.64.64
Jun 26 22:31:55 asus-notebook pppd[15180]: local IP address 10.60.192.71
Jun 26 22:31:55 asus-notebook pppd[15180]: remote IP address 10.64.64.64
Jun 26 22:31:55 asus-notebook pppd[15180]: primary DNS address 8.8.8.8
Jun 26 22:31:55 asus-notebook pppd[15180]: secondary DNS address 217.118.66.243
Jun 26 22:31:56 asus-notebook pppd[15180]: Script /etc/ppp/ip-up finished (pid 15184), status = 0x0
Jun 26 22:31:56 asus-notebook NetworkManager[5462]: <info> (ppp0): writing resolv.conf to /sbin/resolvconf
Jun 26 22:31:56 asus-notebook NetworkManager[5462]: <info> Policy set 'Beeline' (ppp0) as default for IPv4 routing and DNS.
но мне надо в консоли