IMG 1010 - Translate SI and PI - SIP to SS7
- Kelli Higdon
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Feature F-5636 gives a user the ability to decide whether the screening indicator, presentation indicator, or both will be passed through to the SS7 IAM Calling Party number unchanged or passed through with overridden values that are configured through the Advanced Originating Number Parameter object. The feature is supported only when SIP Privacy is enabled and a call is received by the IMG from the SIP network and is transmitted to the SS7 network. Because the feature modifies the behavior of the IMG, a field has been added that can disable or enable the new functionality. The default setting in the ClientView GUI is Disable which forces the IMG to interwork the parameters as it did before the feature was introduced. Refer to the links below for more information regarding this feature.
Call Flow Diagrams
Refer to the call flows and tables below.
Originating Number SI/PI take Priority = Disable
RPID Header | (Advanced Originating Number Parameter)-Screening Indicator Override field | (Advanced Originating Number Parameter)-Presentation Indicator Override field | SS7 Calling Party Number Value |
SI = 001 | No Translation | No Translation | SI = 001 PI = 001 |
SI = 001 | SI = 002 | PI = 003 | SI = 001 PI = 001 |
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With Privacy Enabled the screening indicator and presentation indicator on the outgoing SS7 side have not been modified.
Originating Number SI/PI take Priority = Enable
RPID Header | (Advanced Originating Number Parameter)-Screening Indicator Override field | (Advanced Originating Number Parameter)-Presentation Indicator Override field | SS7 Calling Party Number Value |
SI = 001 | SI = 002 | PI = 003 | SI = 002 PI = 003 |
With Privacy Enabled and the SI/PI Priority field set to Enable, both the SI and PI are overridden.
Configuration
The procedure below describes the objects that need to be configured for this feature to function. The procedure assumes that all Basic Configuration have already been created and configured. Additional functionality such as SS7 needs to be configured. Before proceeding verify the basic functionality has been created and configured.
Configure SIP SGP Profile and enable SIP Privacy
Right click on the Profiles object and select New SIP SGP. Once SIP SGP pane is created, change the SIP Profile ID to something other than '0'. The SIP SGP object with a 0 in the SIP Profile ID field is a default profile and cannot be modified. Once the ID has been modified, the individual fields in the SIP SGP object can be modified.
Within the SIP SGP object, is a SIP Privacy field. Enable SIP Privacy in the SIP SGP object by selecting ON from the drop down menu in this field. Refer to IMG 1010 - SIP Profile - 10.5.3Â topic for more information on configuring the remaining individual fields within this object.
Configure SIP Privacy to Remote-Party Only in SIP Signaling
Right click on the IMG Name physical node object and select New Signaling. The Signaling object is a parent or container object and no configuration is needed here. Refer to the IMG 1010 - Signaling Object topic for more information on this object.
Right click on the Signaling object just created and select New SIP. In the Privacy Support field select Remote-Party onlyfrom the drop down menu. Refer to the IMG 1010 - SIP Signaling Object topic for more information on configuring each of the remaining fields within this object.
Configure Outgoing Translation Table
Right click on the Dialogic IMG EMS 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 IMG 1010 - Routing Configuration Object topic for more information on this object.
Right click on the Routing Configuration object and select New Outgoing Translation Tables. The Outgoing Translation Tables object is also a parent or container object and no configuration is needed here. Refer to the IMG 1010 - Outgoing Translation Tables object for more information.
Right click on the Outgoing Translation Tables object and select New Translation Table. Enter a name into the Translation Table Name field. Refer to the IMG 1010 - Translation Table object for more information on configuring the individual fields in this object.
Right click on the Translation Table created and select New Translation Entry. Enter a string of digits to match on in theStringfield. Refer to the IMG 1010 - Translation Entry topic for more information on configuring the individual fields in this object.
Right click on the Translation Table Entry object and select New Advanced Originating Number Translation. To enable the feature select Enable from theSI/PI Priority field drop down menu.
Depending on the selection made above, the Screening Indicator and/or Presentation Indicator fields can be configured.
Configure SS7 Channel Group
Right click on the Routing Configuration object and select New Channel Groups. The Channel Groups object is a parent or container object and no configuration is needed here. Refer to the IMG 1010 - Channel Groups topic for more information on this object.
Right click on the Channel Groups object and select New Channel Group. Enter a name to identify this channel group.
Select SS7 from the drop down menu in the Signaling Type field.
In the Outgoing Translation Table field select the Translation Table created above that has the Screening and/or Presentation Indicator overridden. Refer to the IMG 1010 - Channel Group topic for more information on configuring the individual fields in this object.
Right click on the Channel Group object and create the ISUP Group. Refer to the IMG 1010 - ISUP Group topic for more information on configuring this object.
Right click on the ISUP Group object and select New Circuits. Refer to the IMG 1010 - Circuit Group topic for information on configuring the CICs.
Configure Remote SIP Gateway
Right click on the Dialogic IMG EMS 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 the IMG 1010 - External Network Elements topic for more information on this object.
Right click on the External Network Elements object and select New External Gateways. Again, the External Gateways object is a parent or container object and no configuration is needed here. Refer to the IMG 1010 - External Gateways topic for more information on this object.
Right click on the External Gateways object and select New External Gateway. Enter a name that identifies this gateway.
Select SIP from the drop down menu in the Gateway Signaling Protocol field and enter an IP address that will be used to communicate with this gateway.
Select the SIP SGP Profile created above that has the SIP Privacy enabled in it from the drop down menu of the SIP Profile field.  Refer to the IMG 1010 - External Gateway topic for more information on configuring the individual fields in this object.
Configure SIP Channel Group
Right click on the Channel Groups object and select New Channel Group. Enter a name to identify this channel group.
Select SIP from the drop down menu in the Signaling Type field. Refer to the IMG 1010 - Channel Group topic for more information on configuring the individual fields in this object.
Right click on the SIP channel group created and select New IP Network Element. Select from the drop down menu of the IP Network Element field the remote gateway configured above. Refer to the IMG 1010 - IP Network Element topic for more information on configuring the object.
Configure Routing
At this point, the feature has been configured along with the SIP and SS7 channel groups. The routing configuration can now be configured so that the call is routed from the SIP channel group to the SS7 channel group since this feature is supported from SIP to SS7.
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