ReviewDesk.com posted a review of the A4Tech KIP(S)-800 IP-Talky VoIP Keyboard/Phone.

I'm wondering why A4Tech decided to use a discreet sound solution rather than just passing things through to an external solution. Considering that just about any motherboard you could ever get your hands on has sound on-board, and many people buy discreet sound cards, having another sound solution on a keyboard shouldn't be on anyone's 'must-have' list. All it does is add potential complications -- if you want to use the IP-Talky with a program that doesn't allow you to select your audio device (unlikely, but possible) you could be stuck having to enable/disable your sound solutions in the device manager on a much-too-frequent basis.

A4Tech KIP(S)-800 IP-Talky VoIP Keyboard/Phone Review