if-up failed

I tried to connect to the internet via my Nokia E71 and must have damaged something on that way:

linux-43ov:/etc/ppp # su -c “wvdial nokia-bluetooth”
→ WvDial: Internet dialer version 1.60
→ Cannot get information for serial port.
→ Initializing modem.
→ Sending: ATZ
ATZ
OK
→ Sending: ATQ0 V1 E1 S0=0 &C1 &D2
ATQ0 V1 E1 S0=0 &C1 &D2
OK
→ Modem initialized.
→ Sending: ATDT99#
→ Waiting for carrier.
ATDT
99#
CONNECT
~[7f]}#@!}!} } }2}#}$@#}!}$}%}"}&} }*} } g}%~
→ Carrier detected. Starting PPP immediately.
→ Starting pppd at Fri Dec 18 20:40:17 2009
→ Pid of pppd: 29204
→ Using interface ppp0
→ local IP address 41.219.90.48
→ remote IP address 10.6.6.6
→ primary DNS address 10.40.10.162
→ secondary DNS address 10.40.10.230
→ Script /etc/ppp/ip-up failed (return value: 0x1 )

where would I be able to get the contends of the if-up file?
Thanks!
Heinrich