DIN EN 301140-5:2001
Intelligent Network (IN) - Intelligent Network Application Protocol (INAP); Capability Set 2 (CS2) - Part 5: Distributed Functional Plane (DFP) (ITU-T-Recommendation Q.1224 (1997), modifiziert) (Endorsement of the English version EN 301140-5 V 1.1.3 (1999