Single Sign-On for multiple unified communications applications

This paper presents several approaches for solving the Single Sign-On (SSO) problem for multiple applications (based on different protocols) that constitute a Unified Communications (UC) solution. It focuses on SSO for HTTP- and SIP-based applications first for concreteness, and then extends the discussion to how analogous approaches can apply to applications based on other protocols. Some considerations about the network and application environment that these design approaches need to work into are also covered.