Microsoft has published a guide about how to use the instant messaging (IM) and presence features of Microsoft Office Communicator Web Access.
This guide contains the following sections:Office Communicator Web Access: Microsoft Office Communicator Web Access Getting Started Guide
Getting connected to Communicator Web Access.
Managing your contacts.
Setting your presence information to indicate whether you are available for instant messaging.
Checking another user's presence information.
Sending an instant message.
Setting options to customize Communicator Web Access features.