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

Originating request - Unregistered User

When the Oracle Communications Unified Session Manager receives an Initial request, it is validated as an originating request from or on behalf of an unregistered user when the following conditions are met:

  • When the ignore-psu-sesscase option is not set:
    • The request is a dialog creating request or a standalone request.
    • The served user is unregistered.
    • The request is from an AS or I-CSCF and the top route header contains the orig parameter OR
The regstate and sescase of the P-served-user header indicates that the request is an originating request for an unregistered user.
  • 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.
    • There is an "orig" parameter in the top route of the request.
    • The served user is unregistered