Would be nice if pppconfig be able to use wvdial as a chat alternative. Wvdial is more inteligent in case of BUSY or NO DIAL TONE. For example instead of using /usr/sbin/chat -v -f <provider chat> using "/usr/bin/wvdial --chat s11"
I've been considering optional use of wvdial's automatic script generation to find modems, optimize initialization strings, etc. Integrating it as an alternative to chat would be a lot of work as I would have to be able to generate two different types of scripts.