The initialization script pppinit(1m) is used to configure Solstice PPP on your client for the first time. It will prompt you for the information that describes your particular configuration, and create the relevant configuration files.
The configuration files for Solstice PPP are:
/etc/opt/SUNWconn/ppp/ppp.conf
/etc/opt/SUNWconn/ppp/ppp.link
Normally, you should not need to modify these files manually to configure your client; however, a list of commonly used keywords and their appropriate values is contained in Appendix A, Configuration Files and CHAT Scripts.