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The ISDN Configuration procedure creates an ISDN D-Channel used for signaling and then its corresponding B-channels. The procedure below displays the basic steps needed to configure the D-channel using NFAS (Non-Facility Associated Signaling) but FAS is also supported. Following each step is a link to a topic that describes the object being configured. The link will have a more in depth description of each field within that object. The descriptions can be used to determine configurations for your local network. Follow the procedure below to create a basic ISDN configuration signaling stack along with its D and B-Channels. Below is a Quick Start diagram displaying the objects.
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Right click on the IMG 2020 object and select New Signaling. The Signaling object is a parent or container object and nop configuration is needed here. Refer to the Signaling topic for more information.
Right click on the Signaling object and select New ISDN. The ISDN object is a parent or container object. Under the ISDN object multiple D-Channels can be configured. Refer to the ISDN - Signaling topic for more information.
Right click on the ISDN object and select New ISDN D-Channel. Select a DS-1 from the Primary Span field. This field is a drop down menu that contains all the TDM DS-1's created. DS-1's 0 through 3 are on the four RJ48 interfaces located on the rear of the IMG 2020 and DS-1's 0 through 27(T1) or 0 through 31(E1) refer to either the DS-3 or Optical Interface. Select from the drop down menus, the DS-1 and DS-0 that the D-Channel will get created on.
Select Yes from drop down list in the NFAS Supported field if NFAS (Non-Facility Associated Signaling) is being configured. Select No if configuring FAS (Facility Associated Signaling). Refer to ISDN D-Channel topic for more information on configuring the D-Channel object.
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Right click on the ISDN D-Channel object and select New ISDN Group. The ISDN Group assigns information such as the capabilities of the DS-1 that the D-Channel will be configured on as well as the Network that the D-Channel will be used in. Refer to the ISDN Group topic for more information on configuring this object.
Right click on the ISDN BDN object just created and select New ISDN Circuit Group. The Circuit Group includes the B-Channels that will be controlled by the D-Channel configured above. Select a starting DS-1 from the Start Span field. This field is a drop down menu that contains all the TDM DS-1's created. DS-1 0 through 3 use the four RJ48 interfaces located on the rear of the IMG 2020 and DS-1's 0 through 27(T1) or 0 through 31(E1) refer to either the DS-3 or Optical Interface. Select from the drop down menus, the starting and ending DS-1's/DS-0's that will make up the ISDN Circuit Group. The Circuit Group being created will be controlled by the D-Channel configured above. Refer to the ISDN Circuit Group topic for more information on configuring this object.
(Optional) Right click on the ISDN BDN object again and select one or more of the features/parameters remaining if either of these selections will be utilized in your network. For information on any of the features/parameters, refer to one or more of the following:
Configure ISDN Channel Group and associated B-Channels
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Right click on the Dialogic object and select New Routing Configuration. The Routing Configuration object is container object and no configuration is needed. Refer to Routing Configuration topic for more information on this object.
Right click on the Routing Configuration object and select New Channel Groups. The Channel Groups object is a container object for multiple channel groups. No configuration is needed here. For more information refer to Channel Groups topic.
Right click on the Channel Groups object and select New Channel Group. In the Name field, either accept the default or enter a name that identifies the Channel Group being configured.
Select ISDN from the drop down menu in the Signaling Type field. For more information on configuring the ISDN Channel Group refer to Channel Group topic.
Right click on the ISDN Channel Group and select New ISDN Group. All the configured D-Channels are included in the drop down menu of the ISDN D-Channel field. Select a D-Channel for the ISDN Group being configured. Refer to ISDN Group topic for more information on the ISDN Group object
Right click on the ISDN Group object and select New Circuit Group. The Circuit Group is the B-Channels that are being controlled by the D-Channel configured above. Select a starting DS-1 from the Start Span field. This field is a drop down menu that contains the DS-1's configured in the Circuit Group above. Select a starting DS-0 from the Start Channel field above. This field is also a drop down menu that contains the DS-0's configured in the Circuit Group above.
Select Ending DS-1 and Ending DS-0 from the end span and end channel fields. The available DS-1's and DS-0's are taken from the ISDN Circuit Group configured above. The Circuit Group being created will be controlled by the D-Channel configured above. Refer to the ISDN Circuit Group topic for more information on configuring this object.
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