Charterhouse Capital Partners, agreed to acquire a majority stake Telio, a Germany-based prison communication systems provider, from Deutsche Beteiligungs, a publicly-traded holding company based in Frankfurt am Main. The sale is expected to close within the next four months. Financial terms were not disclosed. “Telio has undergone a major transformation, once again improving its market position and providing another clear example that add-on acquisitions can decisively accelerate a company's development – and, in the case at hand, its repositioning,” Tom Alzin, Member of DBAG's Management Board.