Billing Procedures Overview

Introduction

Call and event data from the MSCs, BSSs and location registers (HLR/VLR) is required for a
number of network management activities including, but not limited to, the following:
· the billing of home subscribers, either directly or via service providers, for network
utilisation charges;
· the settlement of accounts for traffic carried or services performed by fixed network
and other operators;
· the settlement of accounts with other PLMNs for roaming traffic via the transferred
account procedure;
· statistical analysis of service usage;
· as historical evidence in dealing with customer service and billing complaints;
The call and event data collected from the network elements is employed to determine the
network utilisation charges for the basic and supplementary services utilised by the home
subscribers of the PLMN. The charges calculated are then combined with the network access
(subscription) charges and billed to those customers directly serviced by the PLMN.

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