Is there any security issue with authentication?
Of course… The usual ones apply. The SIP specification describes the purpose and limitations of authentication. Additionally, the user and password informations are currently written in clear text in the configuration file: partysip.conf. Your first task as an administrator will be to make this file unreadable by anyone but you. Later version will support crypted version of the password in the config file and new plugins will be implemented to store user info in sql database so you can improve the security by a good configuration of your sql database.
