Oracle yesterday launched a new suite of single sign-on products, brushing the dust from a largely dormant technology that might see a revival under emerging Web standards. Oracle announced the general availability of its Oracle Enterprise Single Sign-On Suite, which includes a logon manager, a password reset app, an authentication manager, and a provisioning gateway. Single sign-on (SSO) technology has been available for more than a decade, but its adoption has been limited because of difficulties in making it work across disparate vendors and domains, all of which use different methods for managing user identities. SSO works well in closed environments where most of the users are known and registered, but it has encountered trouble in more dynamic environments with less predictable user traffic. About 30 percent of all helpdesk calls require a password reset, at cost of $25 to $50 per call, according to a Gartner study published earlier this year.