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Diagram
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Call Flows
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Call Trace
Configuration
Initial Configuration
Before configuring, the IMG 2020 must have an initial configuration created on it. Follow the Basic Configurations procedure before proceeding onto configuring the MWI feature.
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Create a SIP Profile. Right click on the Dialogic object and select New Profiles. The Profiles object is a parent or container object and no configuration is needed here.
Right click on the Profiles object and select New SIP Profile. The first profile that gets created is a Default SIP Profile and cannot be modified. Disregard this profile.
Right click on the Profiles object just created again and select New SIP Profile. Either enter a Name into the name field that identifies this profile or accept the default entry. Refer to the SIP Profile - SGP topic for more information on configuring each of the individual fields.
Right click on the SIP Profile object just created and select New Advanced Settings. Within the field labeled Allow NOTIFY w/o Subscription, select Allow from the drop down menu. Refer to the SIP Profile - Advanced Settings topic for more information on configuring each of the individual fields.
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Right click on the IMG 2020 physical node and select New Signaling. The Signaling object is a parent or container object and no configuration is needed here. Refer to the Signaling topic for more information on this object.
Right click on the Signaling object created and select New SIP. In the IP Address field, select from the drop down menu which IP address will be used for SIP signaling. Refer to IMG 1010 - SIP Signaling Object topic for more information.
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Right click on the Dialogic object and select New Routing Configuration. The Routing Configuration object is a parent or container object and no configuration is needed here. Refer to the Routing Configuration topic for more information.
Right click on Routing Configuration and select New Channel Groups. The Channel Groups object is a container object also and no configuration is needed. Refer to the Channel Groups topic for more information.
Right click on Channel Groups object and select New Channel Group. Either enter a name that identifies this channel group or accept the default entry. In this example the Channel Group was labeled SIP_MWI_ChGrp.
Select SIP from the drop down menu of the Signaling Type field. Refer to Channel Group topic for more information on configuring this object.
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Right click on the Dialogic object and select New External Network Elements. The External Network Elements object is a parent or container object and no configuration is needed here. Refer to External Network Elements topic for more information.
Right click on External Network Elements and select New External Gateways. The External Gateways object is a parent or container object also and no configuration is needed here. Refer to External Gateways for more information.
Right click on External Gateways and select New External Gateway. Enter a name that identifies the gateway being configured. In this example the gateway was labeled SIP_MWI_GW
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For more information refer to the External Gateway topic.
Insert SIP External Network Element into SIP Channel Group
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Right click on the Dialogic object and select New SS7. The SS7 object is a parent or container object and no configuration is needed within this object. Refer to the SS7 - Signaling topic for more information.
Right click on theSS7object and select New SS7 Network. Select a Network ID from the drop down menu. Refer to the topic for more information on this object.
Right click on the SS7 Network object and select New SS7 Nodes. The Nodes object is a parent or container object and no configuration is needed in this object. Refer to the SS7 - Nodes topic for more information on this object.
Right click on the SS7 Nodes object and select New Primary Node. Within the Primary Node object select from the drop down menu which node will be utilizing the SS7 network that is being created. Refer to the SS7 - Nodes - Primary Node topic for more information on this object.
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Right click on the SS7 Network object and select New SS7 Stack. An SS7 Stack pane will get created. Enter the information needed for your specific network.
Configuring the IMG 2020 for MWI by enabling SCCP and TCAP signaling in the stack. Select ANSI from drop down menu of the SCCP field.
Select either ANSI or ITU from the drop down menu of the TCAP field. See screen capture below.
Refer to the SS7 - Stack topic for more information on configuring the individual fields of the SS7 Stack Pane.
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Right click on the SS7 Stack and select New SS7 Link Set. The link set ID is automatically populated with the next available ID.
In the APC (Adjacent Point Code) enter the point code to which this link set will be connected. The format of the APC needs to follow the format given to the OPC. For example if the OPC is ITU 97, which follows the format 3-8-3, the APC should also be running ITU 97 and follow the 3-8-3 format. For more information on configuring the Link Set object refer to SS7 - Link Set topic.
Configure SS7 Link
An SS7 Signaling Link is a point-to-point connection between two SS7 point codes (For example: A IMG 2020 and an STP). The Signaling Link is configured under the Signaling Link Set. The place holder assigns a physical location in the IMG 2020 (timeslot) and a previously configured Signaling Link Set to a Signaling Link. When configuring multiple stacks, the Link ID's assigned to each signaling stack must be different. For example, if Link ID:1 is assigned to Stack 1, it cannot also be assigned to Stack 2.
Right click the desired SS7 Link Set and select New SS7 Link. The Link ID field is automatically populated with the next available ID.
In the BDN Node field will be all the nodes created within the SS7 Nodes object. Select from drop down menu which node the link being created is associated with.
In the Span and Channel fields, select the DS-1/DS-0 that the link will be created on. The Span and Channel fields have a drop-down menu which includes all the DS-1's/DS-0's available on the specific node selected. By default the first available DS-1/DS-0 is displayed. For more information on the individual fields in the SS7 Link pane refer to SS7 - Link Set - Link topic.
Configure the Destination
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Right click on the Destination object and select New SS7 Route. The SS7 Route pane appears. The Route ID field is automatically populated with the next available ID.
Select the Linkset that will be used from the drop down menu of the Linkset field.
Use the Comments field to enter a meaningful name to identify the route. For more information on the SS7 Route pane refer to the SS7 - Destination - Route topic.
Configure SCCP/TCAP Functionality
Right click on the SS7 Stack object created above and select New SCCP/TCAP. The SCCP/TCAP pane is a parent or container object and no configuration is needed here. This pane will allow you to configure other objects that have to do with SCCP/TCAP. Refer to SCCP - TCAP topic for more information on this pane.
Right click on the SCCP/TCAP object and select New Subsystem Number. Select a Subsystem Number from the drop down menu. The Subsystem Number Status is by default set to Prohibited. Using the buttons just below the Subsystem Pane, click on the Allow button and the status will change to Allowed. Refer to the Subsystem Number topic for more information on configuration of the Subsystem Number Pane.
Right Click on Subsystem Number and select New Adjacent Translator. Select from drop down menu the Adjacent Point Code that will be used for the Message Waiting Indicator. The point codes in drop down menu are point codes from the DPC of the Route ID. Refer to the Adjacent Translator topic for more information.
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Right click on the SS7 Network object again and select New GCL Services. The GCL Services object is a parent or container object and no configuration is needed here. Refer to the GCL Services topic for more information on this object.
Right click on GCL Services object and select New MWI SIP-TCAP Interworking. In the Subsystem field, select from the drop down menu the stack that was created earlier. In the ANSI MWI Protocol field, select from the drop down menu the protocol to format the MWI message. Refer to the screen capture below. For more information on the SIP-TCAP MWI (Interworking) object, refer to the MWI - (SIP/TCAP Interworking) topic.
Once the GCL Service has been created, the new service can be added to the SIP Channel Group created above. Right click on the SIP Channel Group created above and select New Channel Group Service. Refer to the topic for more information on this object.
Select from drop down menu the service that will be associated with this channel group. See screen capture below.
Configure the SS7 ISUP Group and Circuit Group (CICs)
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Right click the Destination object again and select New SS7 Group. Select from the drop down menu of the ISUP Profile field which ISUP Profile will be used in the ISUP Group being created. Refer to the ISUP Group topic for more information on configuring each of the separate fields within this object.
OPTIONAL: Right click on the SS7 ISUP Group created and a list of advanced ISUP Group parameters will appear. Select one or more parameters to be added to the ISUP Group being created. Refer to the Configure ISUP Group Advanced Parameters topic for information on each of the individual parameters.
Right click on the SS7 Group object again and select New SS7 Circuit Group. In the Node Name field, select the Node from which the DS-1's and DS-0's will be used to create the CICs. The nodes in the list will be from the list of nodes under the SS7 Nodes object created earlier.
Select from the drop down menu of the next four fields, the Starting and Ending Spans/Channels (DS-1's/DS-0's). The DS-1/DS-0's in the drop down lists will be all the available DS1's/DS0's available on the node selected above.
Enter a Starting CIC number into the Start CIC field. Refer to the SS7 - Circuit Group under Signaling topic for more information on this object.
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Right click on the Channel Groups object and select New Channel Group. In the Name field, either accept the default name entered or enter a name that will identify this specific Channel Group.
Select SS7_ISUP from the drop down menu in the Signaling Type field. For more information on configuring the SS7 Channel Group refer to Channel Group topic.
Right Click on the SS7 Channel Group created and select New Circuit Group. As described in the Configure the SS7 ISUP Group and Circuit Group (CICs) section above, select the node and DS-1'S/DS-0's that will be used for this circuit group. The selections made should mimic the selections made in the section above. Refer to the SS7 - Circuit Group under Signaling topic for more information on this object.
Click on the Channel Groups object which will now have a yellow exclamation point displayed. Click on the Download Resource Tables button and the SS7 Channel Group configuration just created will be sent to the IMG 2020.
Configuring the MWI feature has been achieved. Below is screen capture of the Routing Configuration directory tree when finished configuring.
Additional Information
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