Cisco Unified Communications Manager Administration Guide, Release 8.5(1)
Automated Alternate Routing Group Configuration
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Automated Alternate Routing Group Configuration

Table Of Contents

Automated Alternate Routing Group Configuration

AAR Group Configuration Settings

Related Topics


Automated Alternate Routing Group Configuration


Use the following topics to find, add, update, or delete AAR groups:

AAR Group Configuration Settings

Related Topics

AAR Group Configuration Settings

In Cisco Unified Communications Manager Administration, use the Call Routing > AAR Group menu path to configure AAR groups.

Automated alternate routing (AAR) provides a mechanism to reroute calls through the PSTN or other network by using an alternate number when Cisco Unified Communications Manager blocks a call due to insufficient location bandwidth. With automated alternate routing, the caller does not need to hang up and redial the called party. The AAR group represents the dialing area where the line/directory number (DN), the Cisco voice mail port, and the gateway are located.

For each AAR group, you enter the prefix digits that are used for automated alternate routing within the AAR group, as well as the prefix digits used for automated alternate routing between a given AAR group and other AAR groups. Devices, such as gateways, phones (by means of directory numbers), and trunks, associate with AAR groups. If automated alternate routing of calls takes place, you may also associate devices with an AAR calling search space.


Note For AAR to function, you must configure AAR groups and also ensure that the Automated Alternate Routing Enable clusterwide service parameter is set to True. (The default value for this service parameter specifies False.)


See the "Understanding Route Plans" chapter of the Cisco Unified Communications Manager System Guide for more information about automated alternate routing groups.

Tips About Deleting AAR Groups

You cannot delete an AAR group that one or more devices references. To find out which devices are using the AAR group, choose the Dependency Records link from the Related Links drop-down list box that is on the AAR Group Configuration window. If the dependency records are not enabled for the system, the dependency records summary window displays a message. For more information about dependency records, see the "Accessing Dependency Records" section. You must remove the AAR group from all devices to which it belongs before deleting the AAR group.

Using the GUI

For instructions on how to use the Cisco Unified Communications Manager Administration Graphical User Interface (GUI) to find, delete, configure, or copy records, see the "Navigating the Cisco Unified Communications Manager Administration Application" section on page 1-13 and its subsections, which explain how to use the GUI and detail the functions of the buttons and icons.

Configuration Settings Table

Table 26-1 describes the AAR group configuration settings. For related procedures, see the "Related Topics" section.

Table 26-1 AAR Group Configuration Settings 

Field
Description
Automated Alternate Routing Group Information

Name

Enter the name that you want to assign to the new AAR group.

The name can contain up to 20 alphanumeric characters and can contain any combination of spaces, periods (.), hyphens (-), and underscore characters (_).

Timesaver Use concise and descriptive names for your AAR groups. The CompanynameLocationGroup format usually provides a sufficient level of detail and is short enough to enable you to quickly and easily identify an AAR group. For example, CiscoDallasAA1 identifies a Cisco Access Analog AAR group for the Cisco office in Dallas.
Prefix Digits Within

Prefix Digits

Enter the prefix digits to use for automated alternate routing within this AAR group. Valid entries include numeric characters (0-9), alpha characters (A-D), asterisk (*), pound (#), plus (+), and hyphen (-).

Prefix Digits Between This Group and Other AAR Groups

Dial Prefix (From this group)

Enter the prefix digits to use for automated alternate routing when routing a call from this group to a device that belongs to another AAR group.

Valid entries include numeric characters (0-9), alpha characters (A-D), asterisk (*), and pound (#).

Note Prefix digits that are entered in this field for the originating AAR group also get added in the Prefix Digits (To this group) field of the AAR destination group.

Dial Prefix (To this group)

Enter the prefix digits to use for automated alternate routing when you are routing a call to this group from a device that belongs to another AAR group.

Valid entries include numeric characters (0-9), alpha characters (A-D), asterisk (*), and pound (#).

Note Prefix digits entered in this field for the destination AAR group also get added in the Prefix Digits (From this group) field of the AAR originating group.


Additional Information

See the "Related Topics" section.

Related Topics

Automated Alternate Routing Group Configuration

AAR Group Configuration Settings

Automated Alternate Routing, Cisco Unified Communications Manager System Guide