Detailed Product Description
A. Suport Multi-languages interface choice, have no effect for the system audio setting when you insert the phone and accord with the skype standard.  
B. There are three function keys, which is preset for “Start Chat” “Send a Voicemail”, and “Ringer Style Setting”. You may customize the three function keys to your desired functions. Such as redial, hold, or listen to voice messages.  
C. No only have the dialing out/receiving calls, but also you can adiust quick function buttons setting, Rings setting, Muiti-languages choice and so on..