Aug  5 03:43:19 asterisk pppd[5183]: pppd 2.4.1 started by root, uid 0
Aug  5 03:43:19 asterisk pppd[5183]: Using interface ppp0
Aug  5 03:43:19 asterisk pppd[5183]: Connect: ppp0 <--> /dev/ttyS0
Aug  5 03:43:19 asterisk /etc/hotplug/net.agent: assuming ppp0 is already up
Aug  5 03:43:22 asterisk pppd[5183]: Hangup (SIGHUP)
Aug  5 03:43:22 asterisk pppd[5183]: Modem hangup
Aug  5 03:43:22 asterisk pppd[5183]: Connection terminated.
Aug  5 03:43:22 asterisk pppd[5183]: Exit.
Aug  5 03:43:22 asterisk /etc/hotplug/net.agent: NET unregister event not supported