Full Description

OSSGR Section 26: Real-Time Rating

Document Number TR-NWT-001164
Issue Number 01
Issue Date Mar 1991

    ABSTRACT: Issue 1 contains the view of Telcordia on the requirements applicable to the Real-Time Rating System (RTRS) of an Operator Services System (OSS) needed to perform timing and rating functions for certain types of operator services calls. The required functions of the RTRS of the OSS, system architecture, system capabilities, and system consideration (i.e., call rating parameters and rate schedules) are provided. The requirements applicable to the Call Rater (CORA), a subsystem of the RTRS used to perform call rating, are also included, along with RTRS performance requirements and administrative measurements.

    Functions of the Core System, Detection Subsystem, Announcement Subsystem and the Operator Subsystem and its interactions with the RTRS or CORA are also described.

    Supplement 1 contains the view of Telcordia on generic requirements for the interface to an external Real-Time Rating System (RTRS). This interface is used to unbundle real-time rating functionality from the OSS. While the focus of the document is on OSS access of the RTRS, any system following this interface could potentially access the RTRS. The interface supports real-time rating for the following types of services: Traditional Coin, Intelligent Public Access Platform, Busy Line Verification/Interrupt, Directory Assistance, Directory Assistance Call Completion, Rate Quotation Time and Charges, and Notify.

    Bulletin 1 alerts the industry to the importance of contacting the appropriate customer or potential customer prior to using the real-time rating requirements in either TR-NWT-001164 or its Supplement. The base TR is outdated in several areas, particularly table formats and structures. In addition, some clients are considering changes to the requirements for an interface to an external RTRS related to the use of Signaling System No. 7 (SS7) Transaction Capabilities Application Part (TCAP) instead of (or in addition to) X.25 for the interface. The SS7 option is discussed in Supplement 1, but detailed requirements for that option are not provided.

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