ETSI TR 129 998-5-4 Universal Mobile Telecommunications System (UMTS); Open Service Access (OSA); Application Programming Interface (API) Mapping for OSA; Part 5: User Interaction Service Mapping; Subpart 4: API to SMS Mapping (3GPP TR 29.998-5-4 version 4.0.0 Release 4)

standard by European Telecommunications Standards Institute, 07/01/2001