We recommend a using USB headset plugged into your computer or headphones with a mic included plugged into you mobile device. Built-in microphones on your computer or webcam can pick up other noise and cause an echo. See Connect to Audio using the Internet (Mic and Speakers) to learn how to select Computer audio. If you want to connect with your computer mic and speakers, then you need to make sure GoToWebinar is set to the right mode. Make sure you have Computer audio mode selected in GoToWebinar.
