Some operators block user SIM cards after a period of inactivity. The <b>SIM Idle Protection</b> tab provides you with the possibility to configure the router to periodically switch to the secondary SIM card and establish a data connection with a mobile network operator in order to break the idleness and prevent the SIM card from being blocked. | Some operators block user SIM cards after a period of inactivity. The <b>SIM Idle Protection</b> tab provides you with the possibility to configure the router to periodically switch to the secondary SIM card and establish a data connection with a mobile network operator in order to break the idleness and prevent the SIM card from being blocked. |