Read more and find e-mail configuration instructions here.
If you need to access an old conversation with a coworker they have not been lost! You can find them in two different places. Conversations are saved in the Conversations Tab in Lync, and sent to your Outlook inbox under the “Conversation History” folder.
To find the conversations in lync, click on your conversation Tab
To view your history in outlook, click on the Conversation History folder