Dension Gateway 500S BT bluetooth phone integration on Mercedes-Benz S-class W220

This video shows how Dension Gateway 500S BT bluetooth hands free car kit works on Mercedes-Benz S-class W220 2004 COMAND. What works: When CDC is selected and call comes in (or has been made from mobile phone), the music playback is paused and after the call is answered (on the mobile phone) the microphone works as input device and sound system as output device. What DOES NOT work: The output from the mobile phone can be heard only when CDC is selected. When RADIO is selected, the speakers will output radio. The call cannot be answered or ended using steering wheel buttons or buttons on COMAND. The call cannot be made from COMAND - the call will not be made and sound will disappear until COMAND is fully restarted. Address book entries from mobile phone are not available in COMAND.