In recent years, the relevance of mobile working has been steadily increasing. New mobile devices (e.g. smartphones) and their innovative functionalities (e.g. mobile applications) enable ubiquitous access to a large amount of data. As a result, the increasing diffusion of smartphones and mobile applications offers new potentials for enterprises. Current mobile devices and related mobile networks have reached a high level of maturity. Therefore, organizational aspects of mobile work become a focal point of interest for enterprises as well as for academics. This research focuses on the communication and information needs of knowledge workers while being “on the road”. In order to evaluate the communication behavior of mobile knowledge workers, the authors collected data of communication and information processes, which were initiated by IT-consultants. The results indicate that communication contexts play a major role for the selection of appropriate media channels