Patent ID: 7142895
Filing Date: 2006-11-28
Classification: H04M,H04W,Y02D

Abstract:
1. A method of operating a communications network having a user profile store arranged to store information relating to the operational status of a user's mobile telephone, said method comprising: retrieving a dialed destination number from signalling data of a call from a calling user to a called user; accessing the user profile store in accordance with that retrieved dialed destination number to find a corresponding user profile; ascertaining whether an activity field of a user profile so found contains an indication corresponding to a currently registered network terminal; and if so ascertaining whether a delivery mode field of that user profile contains a predetermined operational status indicated by receipt from a mobile telephone associated with that user profile of a message requesting update of that mode field to indicate that the mobile telephone, although currently registered is also in a receive-only mode, such a message being indicative of a low battery condition of the mobile telephone having been sensed; and if so sending to the calling user an indication that the called user's mobile telephone is currently in said receive-only mode.