Configure - Cisco AS5350 - Universal Access Server Configuration Manual

Chapter 3 Basic Configuration Using the Command-Line Interface
A trunk group is provisioned as the target of a dial peer or a dial out profile on an AAA server, and the
TGRM transparently selects the specific interface and channels to use for incoming or outgoing calls.
Trunks are selected based on the trunk that is least used (default configuration) or the hunt-scheme
configured.
Using trunk groups simplifies the task of configuring dial peers and interfaces, and also enables the
dynamic selection of interfaces as needed in the access server.
A trunk group can include any number of interfaces, but all the interfaces in a trunk group must use the
same type of signaling.
The TGRM subsystem has been enhanced to add fractional trunks to a trunk group. A fractional trunk is
a single DS0 or a group of DS0s from a trunk.

Configure

The trunk-group command assigns a trunk to a trunk group by specifying the trunk group label
parameter and optionally setting the preference parameter.
The DS0 Dial Out Trunk Group feature adds two new optional keywords:
•
•
The timeslots keyword allows you to selectively add DS0s from a signaling circuit. Fractional
trunk-groups are configured from the controller configuration mode only (as a PRI serial interface may
represent multiple member interfaces, including NFAS). If the timeslots option is not specified, all the
DS0s in the signaling circuit are assigned to the trunk-group.
The preference keyword is configured after the timeslots option and is visible only when the timeslots
option is used. This helps to differentiate between the list of timeslots number and the preference number.
The following example shows the syntax for configuring selected DS0s using the timeslots keyword and
the preference keyword.
trunk-group <label> timeslot <list of timeslots> preference <preference>
The following example shows the syntax for configuring all the DS0s in the signaling circuit:
trunk-group <label> <preference>
Syntax Parameter Descriptions
label
list of timeslots List of the interfaces from the signalling circuit to be added to the trunk group.
preference
The following examples show the configuration steps for PRI signalling. Controller T1 3 is a trunk
configured for PRI.
OL-3418-02 B0
timeslots <list of timeslots>
preference <preference>
Trunk group label. Maximum length of the trunk group label is 127 alphanumeric
characters.
Range is 1 to 64.
Priority of the trunk group member in a trunk group. Range is from 1 (highest
priority) to 64 (lowest priority). Preference can be used to sort a list of trunks in order.
A trunk with no preference is given the highest preference.
Cisco AS5350 and Cisco AS5400 Universal Gateway Software Configuration Guide
Configuring DS0 Trunk Group Dial Out
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