The Enhanced Presence chapter of the upcoming Microsoft Lync Server 2010 Resource Kit book provides information about the enhanced presence service, which relays presence information between two communication entities in Microsoft Lync Server 2010 communications software. This chapter is being developed. It describes the enhanced presence data model and enhanced presence operations, including publication and subscription. You can download this and other Microsoft Lync Server 2010 Resource Kit chapters from the Download Center.
Author: Kurt De Ding
Publication date: July 2011
Product versions: Lync Server 2010 and Lync 2010
The upcoming Microsoft Lync Server 2010 Resource Kit book will provide in-depth technical content about Lync Server 2010. The book will focus on professionals who want to understand more about how the product works internally. You can download this and other Microsoft Lync Server 2010 Resource Kit chapters from the Download Center.
Presence plays an important role in facilitating efficient real-time communications. Presence refers to information used to describe an entity’s availability, willingness, or capability to communicate with other entities. The presence information can help a communicating party determine if, when, and how to contact other parties.
In a Microsoft Lync Server 2010 deployment, a communication entity can be a user or a trusted application such as a Web service, an interactive bot, or the Lync Server Response Group application. The user corresponds to a security principle represented by an Active Directory Domain Services User object and the trusted application is represented by an Active Directory Contact object. A communication entity that makes its presence available is referred to as a presence entity.
This chapter describes the enhanced presence data model and enhanced presence service operations, including publication and subscription.
In this chapter, you learn about the enhanced presence service provided by Lync Server 2010 that relays presence information between two communication entities. The process involves SIP-based messaging to enable the presence publication, subscription, and querying. This presence system is versatile and can handle any application-specific presence data. The versatility is supported by a flexible XML-based presence data model as represented by the enhanced presence category.