ICQ Chat - Responding to a Request
You are notified of an incoming Chat Request by a flashing
Chat   icon on your desktop tray and next to the sender's
name on your Contact List.

To respond to a chat request:

1.
Double-click on the flashing Chat   icon.
2. Choose from the following options.
Click on the Accept button to start the chat session. A chat session dialog is displayed. If there is a delay of more than a few minutes, the sender has either cancelled the request or is unavailable.
Note that excepting this event will enable the sender and other users who join the chat session to view your IP address.
Click on the Do Not Accept button if you do not want to participate in the chat session. Choose from the possible responses displayed in the pop-up menu.