CHAT PROBLEMS

I HAVE A PROBLEM MAKING MY MODEM DIAL UP MY INTERNET CONNECTION PROPERLY. WHEN I CALL UP MY INTERNET SERVICE, THERE IS NO RESPONSE. I HAVE TRIED DIALING UP THROUGH MINICOM AND THEN START PPPD, AND THAT WAY IT WORKS. IT SEEMS LIKE IT SOMEHOW IS MY PPP-ON SCRIPT THAT IS WRONG. MY PPP-ON SCRIPT AND THE CHATSCRIPT ARE LOOKING AS FOLLOWING:
PPP-ON SCRIPT:
LOCKDIR=/var/spool/lock
DEVICE=modem
PHONE=********
USER=************
PASSWORD=********
OUR_IP_ADDR=0.0.0.0

if [ -f $LOCKDIR/LCK..$DEVICE ]
then
      echo "PPP device is locked"
      exit 1
fi

fix-cua $DEVICE
(
      stty 115200 -tostop

      if chat -v -f/usr/local/bin/chatscript
      then
      pppd asyncmap 0 -detach modem crtscts mru 1500 $OUR_IP_ADDR: /dev/$DEVICE
      rm -f LCK..$DEVICE
      exit 0
      else
            echo "PPP call failed" 1>&2
            exit 1
      fi
) < /dev/$DEVICE > /dev/$DEVICE

Chatscript:
ABORT
'NO CARRIER'
ABORT BUSY ''
ATZ OK
ATDT********
CONNECT ''
username: ************
password: \\q********
annex:ppp

The problem has occured after I upgraded my linux from 1.2.13 to 2.0.0. Beforehand I used almost the same ppp-on script just with the chatscript options as parameters using -l to the chat command, and that worked quite fine.
I hope you have a good answer to my question.

Bjarne