comedy ringtones

When i connect my headset the ring sound is tunneld into the earphones by some stupid reason. If the phone rings, how should I hear the signal if the headset is connected and not put into my ears?

Question 2.
Why do i have to restart the phone everytime the connection dies? For example if i walk into a "dead spot" (no connection in area). To get the connection back later i have to restart the phone, why?

The crap phone I use is Nokia Lumia 1520.