Recently, Google has overhauled Google Hangouts to make it more feature rich and easy to use with integrated options that have given it the status of both an instant messenger and a video conferencing tool. There are numerous extensions in Google Hangouts that you can use for enhancing its features and the Hangout Toolbox is perhaps one of the best extension of them all. You can use the Hangout Toolbox to add additional features to Google Hangouts by adding your own branding overlay image, get volume control and comment tracking features and more.