Fecha de publicación: 17/08/2004 Fuente: Wipo "digitalization" A method and system for providing a dialed digit unlock and edit feature for a digital telephone connected to an advanced intelligent network (AIN) wireline network is disclosed. The digital telephone sends at least one digit of a called party number to an originating ISDN switch. The originating ISDN switch determines whether a Q.931 CALL PROCEEDING call control message has been sent from the originating ISDN switch to the digital telephone. If so, then the dialed digit unlock and edit feature is disabled. However, if the Q.931 CALL PROCEEDING call control message has not been sent, then the originating ISDN switch determines whether a key to enable the dialed digit unlock and edit feature has been entered on the digital telephone. If the key has been entered, then the last digit(s) entered for the called party number are erased and the originating ISDN switch awaits a new digit(s) to be entered into the digital telephone.