Version

Date	Version	Editor	Comments
2022-03-15	1.0	Patrik Bruce	First version

Definition

Offline Charging System (OFCS) is defined using the Charging architecture and principles outlined by 3GPP TS32.240 (Ref 1) as the baseline. It is constructed as a set of capabilities to facilitate charging for telecom network connectivity services delivered by the CSP characterized by, and limited to:

Interoperability with the core network

The ability to interoperate with network elements via the Diameter Rf interface

Charging Domain components

Charging Data Function (CDF) – with or without a coupled CGF
Charging Gateway Function (CGF) – when coupled with the CDF to provide full OFCS functionality. Not to be used as a stand-alone CGF.
Interoperability between the CDF and the CGF via a supported interface, to facilitate CDR generation and data flow to downstream Billing Domain (BD) systems

Commercial Models and purposes

Direct B2C connectivity
Direct B2B connectivity
Telecom network inbound roaming
Telecom network outbound roaming

This Right to Use (RTU) grants the licensee the right to use DigitalRoute’s Usage Engine – Private Edition software in accordance with this definition.

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