(Telecompaper) Telecom Italia (TIM) has announced the signing of a non-disclosure agreement with utility giant Enel and state lender Cassa Depositi e Prestiti (CDP) to begin negotiations on ways of integrating its own fibre-optic network with that of wholesale operator Open Fiber. "The objective of the discussions is to verify the feasibility of such an operation, the related procedures and the perimeter of activity subject to a possible agreement, based on the will of the parties and on the legislative and regulatory frameworks," said TIM in a brief statement.