sISI is a support action (SA) intended to stimulate the participation in future Community ICT research of a large number of actors through facilitating their involvement into the Integral Satcom Initiative (ISI), the Technology Platform for Satellite Communications within FP7. To this purpose, sISI will provide all necessary support to ISI to make it an efficient platform, able to provide plenty of opportunities for all of its participants. In particular, support will be provided to:1)ISI contributions to EU, ESA, and National policies and involvement of all actors and stakeholders (organization of the ISI Mirror Group, involvement of the ICT National Contact Points into ISI, involvement of SMEs, International Cooperation, monitoring of EU policies of interest to ISI, identification of actions in favour of EU policies of interest to ISI, monitoring of ESA policies of interest to ISI, identification of actions in favour of ESA policies of interest to ISI, logistic support in Brussels). 2)ISI operations (organization of meetings, production of minutes, organization of elections, editing of general documents).3)ISI promotion (website, mailing list, flyers, newsletter, press releases, monitoring of activities standardization and regulatory, etc.).4)ISI activities towards end-users (identification of end-user groups of interest to ISI, involvement of end-user groups, end-user requirements identification, support to market studies, etcetera).5)ISI Technical Activities (support to the update of the Strategic Research Agenda, identification of open calls of interest to ISI, coordination of technical proposals, monitoring of results, exchange of technical information). The results of sISI will be exploited not only and not mainly by the proposing Consortium, but particularly by all ISI participants in Member States and in Cooperating Countries.