The Computer Calling Kit enables your Sound Station 2 or Sound Station 2W to connect to a computer through the 2.5mm Applications Port built into the conference phone. This means that you can hold productive conference calls over the Internet. You can now use your Polycom conference phone with Internet phone services such as Skype, MSN Messenger, & Yahoo! Messenger, as well as with computer-based softphone clients. The Computer Calling Kit also enables the phones to work with the Polycom PVX desktop video conferencing application, serving as the microphone & speaker for desktop video calls. Typical computer microphones & speakers are not designed for phone calls, & do not have the proper acoustics or microphones to be used by multiple people in the same room. Now with your Polycom phone, several people can participate in your Internet phone calls, & individual users will enjoy a high-quality Internet calling experience without being tied down by a headset. Connecting your Sound Station 2 or Sound Station 2W to your computer is easy: Simply connect the computer calling cable to the Applications Port on your Polycom conference phone at one end. Then, attach the other end to your computers microphone & speaker ports. The cable is included in Polycoms new Computer Calling Kit accessory, & is also included with the Sound Station 2W EX.