Outlook Web App integration is a feature that provides a nice convenience for Lync users who frequently use OWA to connect to their Exchange mailbox. Lync integration with OWA allows presence and IM capabilities to be extended to an OWA session, and also includes the following useful features:
• Presence for internal and federated Lync Server contacts
• The capability to start and maintain chat sessions directly from OWA
• Lync Server contact list integration, including adding and removing contacts and groups
• The capability to control Lync presence states from OWA
OWA integration is possible using either Exchange 2010 or 2013. However, depending on the version of Exchange and the topology, it may be necessary ...