Mine

# This chatfile was generated by pppconfig 2.3.10.
# Please do not delete any of the comments.  Pppconfig needs them.
# 
# ispauth PAP
# abortstring
ABORT BUSY ABORT 'NO CARRIER' ABORT VOICE ABORT 'NO DIALTONE' ABORT 'NO DIAL TONE' ABORT 'NO ANSWER' ABORT DELAYED
# modeminit
'' ATZ
'' AT+CGDCONT=1,"IP","internet"
# ispnumber
OK-AT-OK "ATDT*99#"
# ispconnect
CONNECT \d\c
# prelogin

# ispname
# isppassword
# postlogin

# end of pppconfig stuff