private ITelephone GetPhone(IDataReader rd)
        {
            ITelephone telephone = new Telephone();

            telephone.Id = int.Parse(rd["id"].ToString());
            telephone.Id_proprietaire = Convert.ToInt32(rd["id_proprietaire"].ToString());
            telephone.Initial         = rd["initial"].ToString();
            telephone.Numero          = rd["numero"].ToString();

            return(telephone);
        }