Too many bugs and failures

Unfortunately, I can the phone, after initial enthusiasm, give only one star. Again and again it turns out, are error messages, for example I should check the telephone line (other phones run on the same cable, without any problems). The hope of the software update would correct the issues that I have buried. For me, this phone is unfortunately useless. That, after all, some two hundred euro expensive part is now in the corner. Therefore, I have only one left: a star.
Gigaset I had, after years of good experience with other phones, expected better. How can you bring a so immature phone on the market and the passage of time did not even manage to achieve error-free operation. So complicated, a telephone surely not his.