HELLO!!!! *EARPERKS*
Yes mate I\'ve had this problem too, it plagued me for hours and I solved it a couple of days ago, this is what you need to do. For the init string put AT&FE0V1&D2S0=0S7=10 instead of ATZ
This works but due to the lack of ATZ occasionally you may have to reset your phone. BTW that init string works fine for my Orange / Nokia 6310i but it may not work for others, still no harm in trying it. I\'m guessing you have the same phone as me.
If you need a PPP peer script to connect I can upload one, just ask.