Alarm and position

Hi,
I am trying to find the proper configuration for a device (smartwatch - watch protocol)
When using filter.invalid and filter.zero, the server filters wrong position when no GPS or LBS but also filters the alarm events
I'm trying to make the device send alarm event with the last position in that case.
Any idea how can I do it?

Note:
I can see in the log file the line:
Position filtered by Invalid filters from device: 430XXXX546
and after it:

[3G*430XXXX546*0002*AL]

but no alarm is triggered by the system

Does it trigger the AL alarm without filters?

Yes it does
I did another test:
When I have GPS positioning the alarm is triggered (I mean in traccar manager). when the device is indoor and I press the alarm button, the event arrives to the server (I see it in the log) but the manager ignores it (I guess because the event is filtered - but why is it not using the last location?)

If your device doesn't send any location with a message, Traccar will automatically use last known location. That's expected behavior.