Design appealing, technology mediocre

I bought this phone last week, because I wanted to have one with a second handset and an answering machine. When electric market, I then decided to go for the CD 655 Duo, unfortunately without me beforehand to see reviews on the internet. But I thought to myself 'Philips is still a good brand, then nothing can go wrong already'.
I must say I am quite disappointed by the phone. Externally, it is certain processed appealing and nice to look at, but that alone is not enough unfortunately.
The menu navigation is intuitive and easy to understand relative, 30 min. Recording time of ABs are also neat and you can (if you want) write SMS via the fixed network. But that was in principle already.
The included ringtones are underground for a relatively new phone and at least half of which is horror for the ears. The three sparse wallpapers are nice, but would you then can also save. Too bad, I also think that the base station does not mitklingelt.
What really annoys me but is the totally weak battery performance. 150 hours stand-by time of the manufacturer must be a joke, my batteries last grade times 30-hour period (despite previous full charge), without having phoning it!
Many more but annoys me the voice quality (for me the most important thing in a phone). It roars in the background and some words are choppy when the Opposite makes a brief respite and then again begins to speak, so that his interlocutor sometimes not at all can understand, because only half arrives. This is really annoying and must not be in a Phone!
Although my 10 year old cordless Siemens could only make calls, but the battery has held over the whole year despite daily use at least 5 days and the voice quality was absolutely top ...
Next time it will certainly yet another Siemens ...