Here’s how to stop getting Yahoo! Voice calls on your mobile and revert to receiving calls through your computer:

1. At the top of the Messenger window, click the button with the phone icon and the words, “Yahoo! Voice” on it.
2. Move your pointer over “Call Forwarding.”
3. In the menu that opens, click Disabled.

Calls you get via Yahoo! Voice will now come through your computer, not your mobile.