preventive and corrective maintenance, and associated punctual services for telephone switches of state services and certain Public Establishments in the Grand Est region

maintenance of Alcatel PBXs (Departments of Ardennes (08), Aube (10), Marne (51) and Haute Marne (52))

maintenance of Aastra Matra PBXs (Departments of Ardennes (08), Aube (10), Marne (51) and Haute Marne (52))

maintenance of Alcatel PBXs (Departments of Meurthe et Moselle (54), Meuse (55), Moselle (57) and Vosges (88))

maintenance of Aastra Matra PBXs (Departments of Meurthe et Moselle (54), Meuse (55), Moselle (57) and Vosges (88))

maintenance of Alcatel PBXs (Departments of Bas Rhin (67) and Haut Rhin (68))

maintenance of Aastra Matra PBXs (Departments of Bas Rhin (67) and Haut Rhin (68))

maintenance of PBXs of all other brands (Departments of Ardennes (08), Aube (10), Marne (51) and Haute Marne (52), Meurthe et Moselle (54), Meuse (55), Moselle (57) and Vosges (88), Bas Rhin (67) and Haut Rhin (68))