===================================
cat /tmp/ppp/dialup/dialup.chat
===================================
'' ''
'' 'ATE1V1&D2&C1&C2S0=0'
'OK' 'AT$$MOTI=4098'
'OK' 'AT$$PRT'
'OK' 'AT$$CRSTC=2'
'OK' 'AT+IPR=0'
'OK' 'AT$$NCSQ'
'OK' 'ATD $dialno$'
'CONNECT' ''
===================================
cat /tmp/ppp/dialup/dialup
===================================
nomppe
nomppc
debug
/dev/usb/acm/0
921600
lock
mtu 1400
mru 1500
novj
novjccomp
nobsdcomp
nopcomp
noaccomp
nodeflate
crtscts
noipdefault
ipcp-accept-local
ipcp-accept-remote
lcp-echo-interval 60
lcp-echo-failure 5
#lcp-echo-failure 0
usepeerdns
noauth
nodetach
user "$username$"
connect "/usr/sbin/chat -s -S -V -t 60 -f /tmp/ppp/peers/dialup.chat 2>/tmp/chat.log"
=========================