name: CPS
full_form: Certification Practice Statement
context: for verification purposes when a session is not using end-to-end SIP signaling, i.e. a leg in the session is using circuit switching and ISUP signaling. Out-of-Band SHAKEN is used when a service provider wants to use STIR/SHAKEN for a call sent or received across a non-SIP network segment. For example, Out-of-Band SHAKEN would be used in the following situations: - A service provider originating a call using TDM signaling would generate the applicable PASSporTs using their AS for signing and publish them to a CPS. - An Intermediate Service Provider converting a session from SIP to TDM would publish all PASSporTs received in SIP signaling for that call to a CPS. - An Intermediate Service Provider converting a call from TDM to SIP would retrieve all PASSporTs for that call from a CPS and insert them into the SIP signaling for that call. - A service provider terminating a call using TDM signaling would retrieve all PASSporTs for that call from a CPS and verify the call using their AS for
description: A Certification Practice Statement (CPS) outlines the practices and procedures used by an organization to issue, manage, and revoke certificates. In 3GPP TS 33.127, a CPS serves as a repository for PASSporTs, which are used for verification in out-of-band SHAKEN scenarios.
explanation: The context describes a CPS as a document defining certificate management practices, not a specific telecommunications technology or function. Therefore, it is classified as Miscellaneous.
section_title: E.2.4	Out of band SHAKEN
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biotag_Description: O,B-Miscellaneous,I-Miscellaneous,I-Miscellaneous,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Organization,B-Specification,O,O,B-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Procedure,O