echo problem while USING VDEO CHAT

THIS IS WHY YOU HEARD ECHOS,,,,,
Why do I hear an echo?

 

While Tokbox uses echo cancellation software to improve the sound quality, the built-in speakers and microphone on your computer may still cause some echo. We therefore recommend using a headset (headphones with a microphone) for the best audio quality. We would also recommend closing other applications that are utilizing your cam/mic resources.