The article proposes new concepts and methods the authors used for designing a hybrid infrastructure that allows the economic agents in different business domains to create and maintain virtual business communities. The presented approach highlights several advantages of the hybrid telecommunication system designed for improving the collaborative capabilities in EService area by using the interactive capabilities within the functional blocks of a virtual organization. Advanced concepts such as speech-based user interaction, 2D shared graphics, E-Gap, EBridge, are implemented in order to assure collaborative work capabilities for a wide range of users. The end-users collaborate within a secured and stable virtual environment using workstations, tablet PCs, notebooks, PDA or Pocket PC devices.