Xcap - 1.2.1

: Typically MySQL or PostgreSQL , used to store the actual XML documents.

: Facilitates setting authorization rules that determine who can see a user’s online status. XCap 1.2.1

: Works with conditional queries (ETags) to ensure that updates don't overwrite other changes. Typical Environment Setup : Typically MySQL or PostgreSQL , used to

: It provides an interface for managing user data such as presence authorization rules, resource lists (contact lists), and service configurations. : Typically MySQL or PostgreSQL