Most collaborative systems assume that users have access to workspaces through which they can access the entire collaborative context. This is often not the case with mobile users in global environments. Such users are often disconnected from their contexts and cannot contribute in the best possible way to a business. Connection to contexts is essential for users to contribute usefully in collaborative processes. This requires the mobile devices to manage complex engagements by sequences of simple interactions, which are dynamically adapted to the changes in the context. This paper describes a modeling approach for such integration and the use of software agents to manage engagements using mobile devices. It provides a framework for defining ways to integrate mobility into business processes.