No. iTel S41 does not have a hybrid sim slot. It has 1 dedicated slot for MicroSD card and 2 dedicated sim card slots.
Yes, iTel S41 does have the fingerprint sensor.
Yes. In fact, iTel S41 has ring indicator which blinks when you get a new notification.
Yes, iTel S41 does have the LED flash with the front camera.
Yes, iTel S41 does have VoLTE support.