Unfortunately, in our discussions are already 'lost' before accepting gone because the phone is restarted. This happens reliably when you press a certain operation button during an incoming call. This error is present at least in the current C620 and E630.
The ring tones are the sound a bit strange, but adequate. I'm missing a simple good sounding old-fashioned telephone in the selection.
The phones C620 and E630, the phone reboots when an incoming call the upper menu button (up arrow) pushes. The error exists probably for some time (the E630 we have 5 months). I feel uncomfortable because so already 3-4 talks could not be accepted. It may be that this is the case only in connection with a "foreign base".
The service was only recalling the 24 month warranty. The helps me in the case unfortunately continue not. That's why I forgive only 3 stars. Without the error would be. 4