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

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Trunk Configuration

A trunk is a logical connection between the Mediation Server role and a PBX, PSTN gateway, or Internet Telephony Service Provider. The trunk settings apply to any gateway the site or pool is associated with, so if these settings vary across gateways, a new pool might be required for each unique set. Creating a new trunk configuration has the following options:

Scope—A trunk can either be scoped so that it applies to entire Lync Server site or it can be restricted to only a specific Front End pool. A global trunk configuration also exists.

Maximum early dialogs supported—This value is the number of forked responses the opposite end of the trunk can support in a single SIP INVITE that it sends to the Mediation Server.

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