3. Billing
Invoicing for IMS services is the result of a series of operations carried out via a complex invoicing architecture that enables both the user's account to be debited during a call or after resources have been used, and fine-tuned invoicing according to the resources and services actually used.
3.1 General billing principles
Service billing is based on a series of processes, from the collection of billing information from network nodes to customer payment, as illustrated in figure 28.
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Accounting: procedure for tracing information relating to an event to be billed, such as the use of the operator's network resources, the services provided or the content delivered to the user.
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Billing
Conclusion
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