One of our features called "Private mode", which display "unknown number" or fake number on the other side of the call.
This feature is only available when calling from kaymera to no kaymera phone number when Semi secure call is enabled.
To allow the private mode call on your device
> Scroll down the quick setup curtain twice
> Click on the Kaymera symbol (Security)
> Enable Semi-secure call (Radio Button)
> Enable Private Mode (Radio Button)
Note: some operators block private calls coming from cloud base switch (such as in Kaymera) so private calls may fail to call that number.