Network operators must restrict the services of some subscribers, for example, to control the outgoing and incoming calls of some subscribers in different time segments. In this case, the B&W lists service can be adopted.

During call connection and charging, the special charging and other services are enabled based on the calling and called numbers. For example, through the calling number change of subscribers, the charging can be imposed on only one subscriber. With the called number change in different time segment, the call of a subscriber can be connected to the phone set in the office during work, and connected to the subscribers mobile phone after work.

In addition, the system provides calling party category (CPC) change and ISUP anti-fraud function.

• By replacing the CPC field, the special charging and other services can be enabled.
• With the ISUP anti-fraud function, after replacing the calling number in the IAM (in which the calling and called numbers are not in the local network) with a specific number, the message can be further processed.

This service, however, is not universal. The configuration method must be determined by the actual requirements of the network.

For MORE details on this feature please refer to B&W Lists and Number Change Service on Huawei SG7000 product documentation, thank you and happy reading.

please share more...

More detail required for clear understading

useful document, thanks