Exchange Outlook Anywhere (RPC over HTTPS)

Hi,

My environment is using Windows 7 with outlook 2010 client while the backend is using Windows 2008 R2 with Exchange 2010.

Am confused which version of TLS that Outlook Anywhere (RPC over HTTPS) is using when configured as the Exchange communication  between the client and the backend server.

From the following links, apparently TLS supports many forms of Cipher Suites dependant on the version used.

http://msdn.microsoft.com/en-us/library/aa374757%28v=VS.85%29.aspx

http://technet.microsoft.com/cs-cz/library/dd560644%28WS.10%29.aspx

Would it be possible for me to choose a specific Cipher suite when TLS is enabled on Exchange communication?

Any Security/Exchange gurus can help to shed some light on the above?

Thanks.