Outbound call routing applies to calls that are destined for a PBX or the PSTN. User authorization refers to policies that specify which users have permission to place calls along which routes.

To configure user authorization and outbound call routing for your organization, you must create the following Active Directory objects.

Table 1. Office Communications Server Active Directory Objects for Enterprise Voice

Object Description

Location profile

A location profile defines all phone numbers that can be dialed from a named location. A location contains one or, typically, more normalization rules.

Normalization rule

A normalization rule is a .NET regular expression that defines a phone number pattern. A set of normalization rules associated with a particular location constitutes a location profile.

Phone usage record

A phone usage record specifies a class of call (such as internal, local, or long distance) that can be made by various users, or groups of users, in an organization.

Voice policy

A voice policy associates one or more phone-usage records with one user or a group of users.


A voice route associates target phone numbers with particular IP-PSTN gateways and phone usage records.

The following figure illustrates the relationship among the various routing components. You may find it helpful to refer to this diagram as you go through the configuration process.

Figure 1. Configuring outbound routing

Use the Office Communications Server 2007 Administrative Tools to create the Active Directory objects shown in the previous figure.

Enterprise Voice Route Helper provides an alternative to the Office Communications Server 2007 R2 Administrative Tools for viewing and modifying Enterprise Voice number normalization rules, location profiles, voice policy, and routes. Route Helper is available in the Office Communications Server 2007 R2 Resource Kit.