by” or “network” even where the product mode falls within these mode categories. 3.4 low power mode a product mode that falls into one of the following broad mode categories: ? off mode (s) ? standby mode (s) ? network mode (s) NOTE 1 Low power modes are classified into one of the mode categories above (where applicable) on the basis of the functions that are present and activ ated in each relevant mode . Where other functions are present in a product mode (in addition to the ones required for the mode categories specified above), these functions do not affect the mode classification. NOTE 2 Low power mode categories are defined in order to provide guidance to users of this international standard and to provide a consistent framework for the development of low power modes .