Telecommunications companies work with highly automated billing systems in which services are generated not on a line-item basis but from large volumes of individual usage events. When it comes to rolling out e-invoicing, EN 16931 thus meets a sector that is strongly shaped by aggregation, tariff rating, and complex product structures. Millions of connection records, volume-based billing, and bundled offerings can be represented with standardized invoice line items only to a limited extent. At the same time, multi-tier partner relationships—for example, in wholesale, roaming, or resale models—give rise to multi-layered billing structures. Demanding customer requirements such as consolidated invoices, cost center logic, and international billing models add further complexity.

The “Telecommunications” Industry Center takes up these challenges in a targeted way: users from various areas such as billing, partner settlement, or product management contribute their concrete challenges. Together with the industry association and solution providers, these requirements are evaluated in a focused way and practical solution approaches are formulated. The aim is to develop viable implementation recommendations that take into account both the technical system landscapes and the complex billing models of the sector. Companies that actively get involved ensure that their specific requirements are taken into account, while the results serve as guidance for a consistent implementation of e-invoicing in the telecommunications sector.

Key Focus Areas

Representing event-based billing and mass data

Structuring complex tariff and bundle models

Clarifying multi-tier partner and wholesale settlements

Integrating into existing billing and CRM system landscapes

Implementing consolidated invoices, multi-account, and international models