With Microsoft® Office Communicator 2007 R2, do the following to receive phone calls:
Answer a phone call
In the phone call invitation alert, click the left pane. The alert appears in the bottom right of your computer screen.
Redirect a call
Click the Redirect button, and then select an option from the menu. If you choose to redirect a call to an instant message, a call rejection message is sent to the caller and the Conversation window opens so that you can send the caller an instant message.

Do you have a tip or a trick to share? Send e-mail to trainuc@microsoft.com or leave a comment below.
Neeti Gupta
Product Manager, UC Technical Audience Marketing