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The Inter Operator Identifier (IOI) is shared between sending and receiving networks, service providers, or content providers. The orig-IOI parameter is used by the originating network in the requests whereas the term-IOI parameter is used by the terminating network in the responses.
As a P-CSCF, SBC currently uses the
| Spacevars | ||
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- Use the
orig-IOI
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- in the REGISTER requests only.
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- Include the
orig-IOIin all the SIP requests and responses. While generating responses for any UE terminated requests,
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- the
as a P-CSCF copies theSpacevars 0 product orig-IOIparameter received in the P-Charging-Vector header of the request to the P-Charging-Vector header of the response, and also includes aterm-IOIparameter. Both theorig-IOIandterm-IOIparameters contain configured "Inter Operator ID" for the network.
| Note |
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The "Inter Operator ID" value associated with the Trunk Group towards the IMS core is used for the configuration. |
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