1. Essentials Guide
  2. Oracle USM Supporting the IMS Core
  3. Initial Filter Criteria (IFC)
  4. Supported Sessioncase and Registration State
  5. Terminating Requests - Unregistered User

Terminating Requests - Unregistered User

See the IFC Support for Unregistered Users section in the Configuration Guide for this case.

  • When the ignore-psu-sesscase option is not set:
    • If the Request-URI changes when visiting an application server, the Oracle Communications Unified Session Manager terminates the checking of filter criteria and routes the request based on the changed value of the Request-URI, per 3GPP Specification TS 23.218.
  • When the ignore-psu-sesscase option is set:
    • The request is a dialog creating request or a standalone request.
    • There is no "odi" parameter in the top route of the request.
    • The served user is not registered.

The request is a dialog creating request or a standalone request.

  • There is no "orig" parameter in the top route of the request.
  • There is no "odi" parameter in the top route of the request.
  • The regstate and sescase parameters of the P-served-user indicate for this to be treated as terminating request for an unregistered user