If you have accidentally raised an SOS, or need to cancel it for any other reason, you can do this via the Bullitt Satellite Messenger app.
To do this, open the app and navigate to the lice SOS session. Click the 'Close active SOS' banner at the top of the messaging screen.
You can also close an active SOS if you have activated it from your bluetooth device. To do this, press and hold the SOS key on the side of the device.