Very poor technique and absolutely not recommended!

Positives:
The picture is good and the voice quality is good.

Negatives:
- Unit has twice broken (it could no longer be built up image with the inner function key)
- The device rings groundless + if you want to build only one external image to check whether someone is at the door ringing the device suddenly (indoor and outdoor) ... and signaled so wonderful outward that you are in the house.
- A since the start really annoying thing is that both the outdoor area, as well as the indoor unit will ring. That is, according to GEV that is normal and so desired and also can not be deactivated.
- The ring tones are more than modest and look cheap

Well, unfortunately, we were able in this case, the system previously did not test because we had a few weeks here was connected to it by an electrician. Therefore, no exchange was possible. Here we have from the halfway low price (compared to eg Gira) be blinded.

I can only recommend the fingers of this product can be because it is more than inferior!