# Interconnect Restriction

## Purpose

The Interconnect Restriction form is used to specify the device categories (represented by interconnect numbers) which can and cannot be interconnected by the system during call processing. Since the number of devices that may be interconnected is greater than the number of devices that may not be, this form is used to disable interconnections.

To restrict interconnections between devices, locate the first device's interconnect number, using Search. Click Change and move down the list of interconnects to restrict the interconnect number for which a connection is not allowed. The interconnection numbers were assigned to various devices in their respective assignment forms. The interconnect numbers are, in many respects, similar to Class of Restriction numbers in that they are labels assigned to specific devices through which their access to other devices is restricted during call processing.

Use this form to perform the following tasks:

- Program Class of Service, Interconnect Restriction, and Intercept Handling

- Tandem Trunking

## Conditions

- Any one interconnect number may be restricted from connecting to any other number.

- You cannot apply interconnect restrictions to RAD devices.

- Up to 75 different Interconnect Restrictions can be defined. The 65th restriction should be reserved for use by ARS for routing calls over Direct IP Routes (see ARS Routes form). Its use for other applications is allowed but not recommended. Restrictions 66 and up are reserved for future use.

IMPORTANT: Interconnect Restriction values above 64 should not be used in networks unless the entire network is upgraded to MCD 5.0 or higher.

## Field Descriptions

Parameter | Description | Default Value
From Interconnect Number | Use Search to locate the first device's interconnect number to which restrictions are to be applied. |
To Interconnect Number | A preprinted list of interconnection numbers from which numbers are to be restricted. Toggle from Not Restricted to Restricted for each interconnect number for which a connection is not allowed. | Not Restricted