Using this tool is as easy as running it, clicking on a friend, and pressing the call button. You can interact with other Kakao Talk users with your voice or chat, add emoticons, and even change your voice so it sounds like a cat or dog. Guaranteed fun. Calls are good quality and don’t suffer from sudden voice cuts and delays. Plus, you can adjust the volume to whatever level suits you best.
Kakao Talk's chat windows can also be customized with different colors, themes, and totally unique designs created using your own pictures.
You need to register your email on the official Kakao website and confirm your account from the smartphone app.