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Call Flow Diagrams
SIP to ISDN:
ISDN to SIP:
Mapping isub and isub encoding to ISDN Calling Party Subaddress
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| Info |
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**N/A - Outgoing SIP will not include 'isub' and 'isub encoding' parameters. |
Call Trace
Call Trace - ISUB ENC SIP to ISDN
Call Trace - ISUB ENC ISDN to SIP
Configuration
The isub encoding parameter is a field added to the SIP From Header Tags object. The From Header Tags object is configured under the SIP Profile object and is eventually inserted into a external network element object. Below are instructions on how to configure the isub encoding parameter for interworking between ISDN and SIP.
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Before configuring, the IMG 2020 must have an initial configuration created on it. Follow the Basic Configurations procedure before proceeding onto configuring the ISUB Encoding 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.
Right click on the SIP Profile object just created and select New SIP From Header Tags. By default, the ISUB Encoding field is set to Disable. Select enable from the drop down menu from the ISUB Encoding field. For information on how to configure each of the individual fields in the object, refer to the SIP Profile - From Header Tags topic.
Create SIP signaling stack
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_ISUB_ENC_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_ISUB_ENC_GW
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