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Extension and customization of a category schema

Learn how to extend and customize enhanced presence categories by using Microsoft Unified Communications Managed API 4.0.

Last modified: August 16, 2013

Applies to: Lync 2013 | Lync Server 2013

Thanks to the XML representation, enhanced presence categories are extensible. They can be extended in the following ways:

  • An application developer can define a custom enhanced presence category to support application-specific presence features.

  • A category schema designer can extend an existing enhanced presence category to maintain version-related updates.

  • An application developer can extend an existing enhanced presence category to add custom presence features.

Enhanced presence extension and customization is available only to applications using UCMA 4.0.

Schema extension of Enhanced Presence categories

Explain how version-related updates of an existing category schema are enabled using the delimiter element and end element elements.

Application extension of Enhanced Presence categories

Explain how application-specific presence features may be added to an existing category schema using the extension element element.

Custom Enhanced Presence categories

Explains how a custom category may be registered and used to support application-specific presence features.

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