... “SOS” key to call the set numbers directly for help, support two-way talking. Try each number ... to get connected.4,Three preset phone numbers for incoming call, two-way talking.5,Black list ... excluded can reach.6,One preset phone number for monitoring, call the device with the preset number ... start monitoring.7,Speeding alarm8,GEO-fence9,Alarm for replacement of SIM10,Low power alert11,Dismantle alarm ...