5 * run a user given command upon incoming calls
11 * zeroconf support for advertising services (cool stuff!)
12 * have the possibility to define several profiles (config files) and switch between them
13 * help tips for the registration box
14 * 2. There could be a sound effect for "busy" - a short "beep-beep-beep" would be sufficient (try http://www.google.com/search?q=busy.wav)