With Office Communicator, you can start an instant messaging session with a single contact, with multiple contacts, or with a group. You typically start an instant messaging session by double-clicking a contact name in the Contact List.

| How to |
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| Send an instant message |
In the Contact List, double-click a contact, type a message, and then press ENTER.
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| Add an emoticon |
Place the mouse pointer where you want to add the emoticon, click the emoticon button, and then select the emoticon.
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| Format text |
To selectively format message text (for example, make a word bold) in the Conversation window, select the text that you want to format, then click the Change Text button. Make the changes you want in the drop-down dialog box and then click in the Entry area to close the dialog box and accept the changes. The selected text is now formatted according to your changes. Also, any text that you type after making the formatting changes will be in the new format.
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| Send an instant message to a group |
Hold the CTRL key and select multiple contacts. Right-click the last contact, and then select Send an Instant Message or press ENTER. You can also right-click a group, and then click Send an Instant Message.
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| How to |
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| Accept an instant message |
Click the left pane of the invitation. |
| Decline an instant message |
Click the Close Conversation button in the instant message invitation alert. |
| Respond to an IM invitation with a call |
Click the Call button in the invitation alert and then select Communicator Call or a phone number. For more information about making calls, see Making and Receiving Audio Calls. |
| Set your status to Do Not Disturb when you receive an invitation |
Click the Do Not Disturb button, and then click Set Status to Do Not Disturb. You typically use this feature when your status shows you as available, but your are in an unscheduled meeting or an important conversation. The new presence status lasts until the beginning of the next hour. |
For more information see Create and Send an Instant Message.