I thought the Wireless Emergency Alerts protocol was completely separate from SMS though, since it is based solely on geographic location of the cell tower and not your phone number.
> I thought the Wireless Emergency Alerts protocol was completely separate from SMS though
They are entirely separate from SMS, you are correct. WEA messages are sent inside System Information Blocks (SIB12 specifically). Other SIB blocks are how your phone learns of authorization to use the tower, what frequency channels to use, neighbors of the tower, and other control related info.
They are entirely separate from SMS, you are correct. WEA messages are sent inside System Information Blocks (SIB12 specifically). Other SIB blocks are how your phone learns of authorization to use the tower, what frequency channels to use, neighbors of the tower, and other control related info.