intelligent Point-to-Point Protocol dialer
WvDial sacrifices some of the flexibility of programs like "chat" in order to make dialup configuration easier. With WvDial, modems are detected automatically and only three additional parameters are required: the telephone number, username, and password. WvDial knows enough to dial with most modems and log in to most servers without any other help.
In particular, a "chat script" is not required to handle the most common situations.