| Initiating a Call | Placing a Call on Hold | Leaving a Voice Message | Ending a Call |
When you have a call in progress, you can place the call on hold, just as you would with a telephone that has a hold feature. While the call is on hold, the connection is maintained, but you and your contact cannot hear each other. Putting a call on hold allows you to place another call or to answer a call from someone else. You can leave a call on hold indefinitely.
In the IM window, click the Hold button.

A message informs you that the call is on hold, and the Hold button changes to a Resume button.
When you are ready to resume the call, click the Resume button.

If your contact does not accept your call, you can leave a voice message.