Trunks

Trunk configuration in Lync Server 2010 is an object that administrators can use to define the connection between Lync Mediation servers and IP/PSTN gateways within the infrastructure. One important feature is that a trunk configuration can control how dial strings are passed to a specific IP/PSTN gateway.

In Office Communications Server 2007 R2, any outbound dialing rules had to be performed by the IP/PSTN gateway itself, which required organizations to maintain dialing rules in multiple locations. With Lync Server 2010, dial strings can be manipulated before being sent to an IP/PSTN gateway so that digits can be removed, added, or translated.

A common example is where an IP/PSTN gateway does not support the + prefix in E.164 and needs ...

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