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Communicator Web Access (2007 R2 release) and Office Communicator 2007 R2 provide the following new features:

• Collaborate with external organizations.Communicator Web Access (2007 R2 release) provides customers and business partners outside of your organization the ability to join conferencing and collaboration sessions easily and inexpensively. Invite anyone with a Web browser to join a conversation that you are hosting, share your desktop with a vendor to discuss a project, or start a conference call with a stakeholder and route the call to your mobile device.
  
  
• Desktop sharing.Users can see everything happening on someone else’s computer, and can even be given the right to control that computer. People running Microsoft Windows and a supported Web browser can share their desktops with others. Anyone running a supported Web browser (including people using Macintosh or Linux computers) can view and control a shared desktop.
  
  
• Dial-out conference audio.You can add audio conferencing (that is, using standard telephones, including cell phones) to any existing instant messaging (IM) or desktop sharing session. You supply the names of each person to take part in the audio conference, and Communicator Web Access calls each person, and sets up and manages the conference call.
  
  
• Support for distribution groups.Users can add distribution groups to their contact list and exchange instant messages with all (or some) of the members of those groups.
  
  
• Customize the login screen and links.Your IT department has the ability to customize login screen and links.
  
  
• Support for browsers other than Internet Explorer.While not strictly a new feature, the list of alternate browsers is expanded in Communicator Web Access (2007 R2 release). The following table outlines the supported browsers.
  
  

Table 1. Supported Browsers

Operating system	Browser
Microsoft Windows 2000 with Service Pack 4 (SP4)	Internet Explorer 6.0 with SP1
Windows XP with SP2	Internet Explorer 6.0 with SP2 Internet Explorer 7.0 Firefox 3.0.X
Windows Vista	Internet Explorer 7.0 Firefox 3.0.X
Macintosh OS 10.3.9	Safari 1.3.X Firefox 3.0.X
Macintosh OS 10.5.4	Safari 1.3.X Firefox 3.0.X
Red Hat Linux 2.16	Firefox 3.0.X
HP UX	Firefox 3.0.X
IBM AIX	Firefox 3.0.X
Sun Solaris	Firefox 3.0.X

See Also