This presentation was realised by Valéry Ridde, Emmanuel Bonnet, Christian Dagenais, Ludovic Queuille, Zoumana Traoré, Patrice Sanon, Lucie Lechat and Paul-André Somé for the 22nd IUHPE World Conference for health promotion in Curitiba, Brazil (May 2016). It shortly summarizes the context, the objectives and the implementation of the action research project providing a toll-free number in Burkina Faso to improve health system governance.