ST-901 update every second

uneasya year ago

Why I am trying to set it up, I've had issue when updates were not frequent enough. I've set updates to something like every 10 seconds. which was working.
Now I've sent text message to activate shake alert, I can se on traccar log it receives message every second, to stop it I had to update ACC OFF interval. and it went back to normal.

Any idea why it changed all of the sudden ?