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Microsoft® Lync® Server 2013 Unleashed Second Edition by Randy Wintle, Alex Lewis, David Ross, Tom Pacyk

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Instant Messaging and Presence

Although instant messaging (IM) and Presence are two different functions, together they form the most basic functionality available in Lync. In fact, it is not possible to deploy one without the other. IM describes the now-ubiquitous function of engaging in a conversation with another user using simple text-based messaging. In addition to enabling IM for users within an organization, Lync Server supports public IM connectivity (PIC) with several of the more popular IM providers, including AOL, Skype, and Google Talk. In addition, Lync Server allows organizations to federate with other organizations that are also using Lync, extending the IM capabilities beyond corporate borders.

Federation effectively sets up a ...

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