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Microsoft® Lync Server 2010 Unleashed by Tom Pacyk, Andrew Abbate, Alex Lewis

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PSTN Usages

The PSTN usage object in Lync Server often seems confusing because it has no settings or configuration options other than a name. There are no user options or policies configured on a usage and it cannot even be created by itself. Instead, PSTN usages can only be created through a voice policy. Usages are also not even associated directly with users. They are associated with routes and voice policies so that they can be considered the glue that ties a route to a voice policy associated with a user.

PSTN usages are typically identified by different classes of services. For example, usages such as Emergency, Information, Local, Long Distance, or International might be created. An organization might choose to create more specific usages ...

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