Some time ago the folks at Gigaset showed me their DE380-IP-R desk phone. It was about the time that they were just starting to ship their SIP/DECT products to the US. When they sent me some sample gear for evaluation a lone sample of this little desk phone came along for the ride.
I tried the DE380-IP-R for a short while but never really put it into service. I used it just long enough to confirm that it was truly wideband capable, supporting G.722.
The simple truth is that I found the phone to be just a little too quirky for my tastes. There are things about it that seem too Euro-centric in their design or implementation. Further, with a retail price of around $140 they were simply too odd when compared to the newly released Polycom Soundpoint IP335, which is also wideband capable.