Here is a neutral and interesting 1-paragraph summary of the text: This article guides developers through the process of adding cross-platform video communication capabilities to their existing Unity project. It assumes that readers either have an existing project or are willing to start from scratch using a pre-built Tanks!!! reference project with some modifications, including enabling Unity Live Mode for multiplayer and setting up the iOS and Android builds. The article then walks through the integration process of the Agora Voice SDK for Unity, which simplifies implementation in cross-platform mobile projects, and provides code snippets for scripting interactions between the game and the Agora engine, as well as logic for joining channels in both create and find games modes.