The Telepathy project is building a unified framework for many different kinds of real-time communications. It uses the D-Bus messaging system to provide a simple interface for client applications, allowing them to quickly take advantage of Telepathy's benefits. * Real-time: Telepathy supports instant messaging (both one-to-one and in groups), voice calls and video calls; it's less suited for store-and-forward applications like email * Unified: Many different programs can take advantage of these communications; Telepathy lets these programs work together * Framework: Telepathy allows the different aspects of communication handling to be divided between different parts of the system, meaning each part is simpler