This project includes several experiences we have done with Orange Telecom. The first was in the in 2010 with the objective of analysing GSM data by means of algorithms developed in our lab integrated in M-Atlas system. A second experience in 2012 lead to the developing of GSM-specific algorithms able to cope with the uncertainty of this kind of data and taking advantage from the representativeness of the population presence in the long period, the result was the correlation pattern algorithm. Moreover further collaboration with them lead to several publication on the human understanding using the GSM data as proxy of heir habits.