ISO/IEC 15049:1997 信息技术系统间的无线电通信和信息交换专用集成服务网络规范,功能模数和信息流计费辅助服务的通知.

标准编号：ISO/IEC 15049:1997

中文名称：信息技术系统间的无线电通信和信息交换专用集成服务网络规范,功能模数和信息流计费辅助服务的通知.

英文名称：Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Specification, functional model and information flows — Advice of charge su