You need to configure the SOS emergency numbers to make use of this functionality.
SOS number settings:
Through Settings/SOS
• Check that the SOS function is On.
• Set up the emergency numbers through ""SOS Settings/Emergency Call /SOS numbers“. They can be imported from telephone contacts or added manually.
• Enter the help message that will be sent to the SOS numbers “SMS SOS Message”.
Using the SOS function:
During an emergency, press and hold the SOS key for a few seconds. The terminal will start calling the previously established numbers. Then it will start the call cycle, and it will send the SOS message during every call. The telephone will call the SOS numbers in consecutive order. If there is no answer, it will skip to the next number cyclically until one of them answers.