Patent ID: 7343156

Claim:
A method for securely logging on a portable part at a base station for activating a plurality of authorized portable parts, the method comprising the steps of: registering the authorized portable parts at the base station to create an authorized group; remotely interrupting power to the base station momentarily to induce a log-on mode in the base station, wherein the remote interruption breaks a connection between the base station and a telecommunication network; monitoring a log-on mode of at least one of the registered portable parts to confirm that a log-on mode is off; performing, via the base station, a check for an operable communication connection from the base station to a telecommunication network if the log-on mode is off; initiating a log-on procedure wherein the log-on mode is initially kept switched off by the base station if the check has a positive result; continuing the log-on procedure by switching the log-on mode on for a predetermined period of time in the base station after the interruption of the power has occurred, wherein the at least one of the registered portable parts is allowed to log on during the predetermined period of time as a member of the registered group; and switching the base station into an operating mode after the predetermined period of time has expired.