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Below are instructions on how to configure the IMG to interwork SIP INFO message into an ITX message and interwork the ITX message into a SIP INFO message. Verify the following entities are configured before proceeding:
Configure British Telecom Variant
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Right Click on IMG EMS and select New Signaling Variants. This is a container object, multiple signaling variants can be created under this object. Refer to IMG 1010 - Signaling Variants topic for more information
Right Click on New Signaling Variants and select Import Variant Table:
The 'Configure Import Variant Table' dialog box will appear. Select BritishTelecom.xml from drop down menu. Select Next and then FINISH after verifying the correct .xml file was selected. See Below:
Under the Signaling Variants object the British Telecom variant will appear in the ClientView tree along with all the PPL messages needed for this variant.
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Right Click on IMG name and select New Signaling. A signaling object will get created. Under this object, the SS7 Stack is created. See link IMG 1010 - Signaling Object.
Right Click on Signaling object and select New SS7. An SS7 Standalone object will get created. See IMG 1010 - SS7 Signaling Object.
Right Click on SS7 Standalone and select New SS7 Stack. Enter an OPC and select British Telecom from drop down menu in the SS7 Variant field. (folder in /opt/dialogic/common/config/Variant directory).
Select ETSI V3 as the base isup variant. See screen capture below:
Finish configuring the stack with Link Sets, Links and Routes. See IMG 1010 - Configuring SS7 Signaling - 10.5.1 link.
Create SS7 Channel Group
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Right Click on IMG EMS object and select New Routing Configuration. See IMG 1010 - Routing Configuration Object link.
Right Click on Routing Configuration object and select New Channel Groups. See IMG 1010 - Channel Groups link.
Right Click and select New Channel Group. Enter a name for this Channel Group and select SS7 from Signaling Type field drop down menu. See IMG 1010 - Channel Group link for more information on configuring the SS7 Channel Group.
Right Click on the channel group just created and select New ISUP Group. In the OPC - DPC field select the SS7 stack created above which has the BritishTelecom variant associated with it. Refer to IMG 1010 - ISUP Group for more information on this topic.
Right Click on the ISUP Group created and select New Circuits. Configure the spans/channels that will be used.
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Create Route Tables and Route Entries to route call from incoming SIP to outgoing SS7
IMG 1010 - Overview of Routing
IMG 1010 - An Overview of Routing Configuration
Additional Information:
The British Telecom Variant on the IMG is supported in ETSI V3 only.