Making a call: Direct "HANDED OFF"

Hi all,

when I'm making a call via my Watch then i get the "CALLING" screen and then directly the "HANDED OFF" one.

The call is made, i can here the sounds on the watch's speaker etc BUT i have no control over the call.

In order to get to the call and hang up I have to open the "Phone" app on the watch and there I just got the big red button, no volume settings.

Is there somebody else getting that?

First:

Then:

Is that a sign for an automatic hand off? Why do i get the hand off?

Versions:

WatchOS 1.0.1 (Sport Edition)

iOS 9 beta (iPhone 5s)

I've tried to turn of the Hand Off setting on the iPhone app, no difference.

Thankful for all help I can get from the Community/Micke