ITU-T I.141 PDF

General

ISDNs shall support a range of services as defined in the I.200-Series of Recommendations. Charging capabilities and mechanisms need to be associated with each service.

To ensure that service charging requirements may be supported by network charging facilities, it is essential that the service requirements be specified in a format which simplifies the identification of network requirements. The attribute technique is considered an appropriate mechanism by which service requirements may be related to network requirements and has thus been utilized in this Recommendation.