The program allows to block undesirable incoming and outgoing calls and SMS. Some program functions require root privileges. Root rights are not needed to block calls on Android 8+. There is a support Dual SIM smartphones. Blocking is carried out at system level, the program doesn't miss the first call, the screen isn't lit and there is no window of a dialer. Features: - Blocking incoming SMS and MMS on Android 4.4 above without appointment as its program for SMS processing. - Blocking of