B.0 General

32.2403GPPCharging architecture and principlesCharging managementRelease 18Telecommunication managementTS

To enable the sale of regulated roaming services, an architecture based on 3GPP has been defined in the high-level technical specification EU Roaming regulation III; Structural Solutions; High Level Technical Specifications [298]. A real-time interface has been defined in EU Roaming regulation III; Interface & Protocol; Detailed Technical Specifications [299] for retailing billing of voice calls between a Domestic Service Provider and an Alternative Roaming Provider.

For the purposes of this annex, the following definitions apply:

Alternative Roaming Provider (ARP): A roaming provider different from the domestic provider.

Domestic Service Provider (DSP): An undertaking that provides a roaming customer with domestic mobile communications services, either a Mobile Network Operator or a Mobile Virtual Network Operator.