Different Levels of Integration between Exchange and Lync.

Lync 2013 and Exchange can be integrate several levels to provide the end user with the best experience. The integration is done both at the client and server levels. To fully integrate Lync and Exchange, there are several tasks that need to be done at the server level, using the following tools:

•  Lync 2013 Management Shell 
• Exchange 2013 or 2010 Management Shell 
• Lync 2013 Control Panel 
• Exchange 2013 Administrative Centre or the Exchange 2010 Management Console 
• Lync 2013 OCSUmUtil tool 

 The Above tools will allow you to configure the integration between Lync 2013 and Exchange

  Depending on the Lync and Exchange versions, the integration features available will be different, and the following table highlights these differences:

As shown in the table, to have all the available Lync and Exchange integration features, you need to have both Lync 2013 and Exchange 2013.

 At a client level, the integration between the Outlook and Lync clients differs depending on the Lync and Exchange versions.

You need Lync 2013 and Exchange 2013 to be able to have the Unified Contact store etc..

There are more features that you can use when integrating Outlook with the Lyncclient, and these features are available with Lync 2013 and both Exchange 2013 and 2010.

  These features, provided by the Exchange Web Services, are the following:

• Read or delete items in the conversation history folder in Outlook 
•  Listen to or delete voicemail items 
• Display extended free busy information and meeting subject and location 
•  Read or delete Lync missed call notifications in your inbox