For its mobile telephone network, the SFR telephone company has set up a hot-line service which is open 7 days a week and the purpose of which is to field calls from subscribers with questions about network, invoice… The study carried out for the company seeks to build a system which will provide monthly forecasts of such traffic. We use two methods to meet the objective : Holt-Winters and a dynamic linear model. The accuracy of the forecasts of the two models are compared.
INDJEHAGOPIAN, J.P. et MACE, S. (1998). Mobil Telephone Traffic Forecasts.