We recommend that you run the Call Setup Assistant before making voice calls for the first time.

To run the Call Setup Assistant:

1. Open the "Messenger" menu in the main Yahoo! Messenger window, and click "Preferences."
2. In the Preferences dialog box, click "Calling and Audio."
3. In the Calling and Audio dialog box, click "Open the Call Setup Assistant."
4. Follow the instructions to test your microphone and speakers and specify your Internet connection.

Running the Call Setup Assistant will ensure that you have a high-quality voice experience within Yahoo! Messenger. You can run the Call Setup Assistant at any time to make sure your microphone and speakers are working properly or to change the type of Internet connection you are using.