| Placing a PC-to-PC Call | Receiving a PC-to-PC Call | Placing a Call on Hold |
Yahoo! Messenger offers two ways to receive calls:
PC-to-PC calling—any of your friends who know your Yahoo! ID and use Messenger 7 or higher can call your computer and the two of you can talk just like you’re both on the phone. You just need to be signed in to receive the call. And the best part? It’s free.
Yahoo! Phone In—a
premium Yahoo! Messenger feature that allows your friends to call your
computer from a regular telephone or a mobile phone. Learn more
about this feature in the Using Yahoo! Phone In tutorial.
Tips:
You can’t receive PC-to-PC calls or use Yahoo! Phone In when
communicating with Windows Live™ Messenger contacts.
If you haven’t already done so, use the Call Setup Assistant,
as described in the Introducing Yahoo! Messenger’s Call Features tutorial,
to be sure that your microphone and speakers are set up properly.
(More Details)
If you’re signed in to Yahoo! Messenger and a contact calls your computer using the PC-to-PC call feature, you’ll see a pop-up notification of the call on your computer screen.

Tips:
If you have Open
Talk enabled, you won’t see this window unless
you’re already on a PC-to-PC call.
You’ll always see the Yahoo! Phone In call popup window.
If you have an IM window open with the contact who’s calling, the call area of the window changes to show that there’s an incoming call.

In both cases, you’ll also hear a ringtone if you have enabled ringing. Respond by clicking the appropriate button:
Accept: If you accept the call, the connection is made, and you can begin talking just like you do on the telephone.
Decline: If you decline the call, your caller won’t know that you’ve declined the call.
IM Only (only available in the pop-up notification window): If you select this response, the call ends. An IM window opens so you and your contact can communicate by typing messages instead.
Once you accept a call, the IM window changes to show that you’re connected, with a timer indicating the length of the conversation so far and status displays for the microphone and speaker.

Either you or the caller can end the call at any time by clicking the End Call button.

Just as with a telephone conversation, either person can put the other on hold.