Configuring ISDN Signaling

Overview: (NFAS)

Follow the procedures below to configure a D-Channel on the IMG using NFAS (Non Facility Associated Signaling). Once the D-Channel is configured then the B-channels can be configured under the Channel Group Pane.

 

Previous Task:

Configuring T1/E1 Bearer Spans  (10.5.x and above)

Configuring T1/E1 Signaling Spans (10.5.x and above)

T1 Physical Span (10.3.x)

E1 Physical Span (10.3.x)

 

 

Configuring a D Channel using NFAS

Note: Below is procedure on how to configure ISDN with NFAS. The procedure can be followed for configuring ISDN with FAS also. The difference is in FAS there will be a d-channel configured on every span.

  1. Right Click on the Physical IMG:Name ID:0 object pane in ClientView and select New Signaling.

  2. Right-Click on the Signaling object pane in ClientView and select New ISDN. An ISDN D-Channel object will get created. See screen capture below.

    SC_Tree_ISDN.png
     

  3. To create the D-channel, right-click on the ISDN D Channels object pane just created and select New ISDN D Channel. The ISDN D-Channel Pane will get created. See Below

    SC_ISDN_Dchannel_Pane.png
     

  4. Complete the fields as required. Below are explanations for each field

 

Note: Depending on which Base Variant is being configured will dictate how many B-Channels can get configured. Below is a list of the variants supported and number of B-Channels that can get configured for each. The table below does not include the span that the D-Channel is configured on.

 

Number of Spans Configurable per Base Variant (T1)

BASE VARIANT (Network or User)

B-Channels IMG 1010

B-Channels IMG (1004)

National-ISDN 2 (NI2)

20 Spans (479 Channels)

4 Spans (95 Channels)

ATT 4ESS Q.931 PRI

10 Spans (239 Channels)

4 Spans (95 Channels)

ATT 5ESS Q.931 PRI

10 Spans (239 Channels)

4 Spans (95 Channels)

Northern Telecom DMS-100 Q.931 PRI

10 Spans (239 Channels)

4 Spans (95 Channels)

Northern Telecom DMS-250 Q.931 PRI

10 Spans (239 Channels)

4 Spans (95 Channels)

JATE

10 Spans (239 Channels)

4 Spans (95 Channels)

Net5 Q.931 (10.3.3 ER2)

10 Spans (239 Channels)

4 Spans (95 Channels)

 

 

 

 

 

 

 

Location Values

Property

Value

User

(0x0 - Message Generated by User) (default)

Private Network

(0x1 - Message generated by private network serving the local user)

Local public network

(0x2 - Message generated by public network serving the local user)

Transit network

(0x3 - Message generated by transit network)

Remote public network

(0x4 - Message generated by public network serving the remote user)

Remote private network

(0x5 - Message generated by private network serving the remote user)

International network

(0x7 - Message generated by international network)

Network Beyond Interworking Point

(0xA - Message generated by network beyond inter-working point)

 

  1. At this point the D-Channel has been configured. The next few steps will explain how to create the B-Channels that will be controlled by this D-Channel just configured.

 

Configuring B-Channels

  1. Right Click on the Dialogic IMG EMS object pane and select New Routing Configuration.

  2. Right Click on Routing Configuration object pane and select New Channel Groups.

  3. Right Click on Channel Groups object pane and select New Channel Group. The Channel Group Pane that appears has a lot of information. See Channel Group link for information on each field. The two fields that have to be filled out are as follows:

Name: Enter a name that identifies this Channel Group

Signaling Type: Select ISDN from the drop down menu

 

  1. Right Click on the ISDN Channel Group created and select New ISDN Group. See ISDN Group Pane link for more information on how to fill out this pane. The one field that needs to be configured is the ISDN D-Channel field. This field will have all the D-Channels configured along with what span it is on. Select which D-channel you would like to configure.

  2. Right Click on the ISDN Group and select ISDN Circuits. This is the pane that the B-Channels will get configured on. See screen capture below of B-Channel Pane

    SC_ISDN_Circuits.png
     

  3. Populate the fields. Below is brief description on each field

 

Note: In the example above the Base Variant selected was NI2. On the IMG 1010 this Variant allows 20 spans of B-Channels to be configured. Other Variants will allow less. See Base Variant Table above for reference.

Start Interface Offset = 0

End Interface Offset = 19

  1. Below the Start Facility Number are monitoring fields.

(20 spans * 24 Channels = 240 Channels)

(240 Total Channels - 1 D-Channel = 239 B-Channels)

 

  1. At this point you have configured a D-Channel controlling 239 B-Channels.

 

Next Task

Configuring ISDN Routing