ETSI TS 129 412-2010 数字蜂窝通信系统(第2+阶段).全球移动通信系统(UMTS).电信和互联网融合业务及高级网络协议(TISPAN).互通.NGN和外部CS网络互通的干线网关控制协议(版本8.1.0).3GPP TS 29.412(版本8.1.0)
Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); TISPAN; Interworking; Trunking Gateway Control Procedures for interworking between NGN and external CS networks (V8.1.0; 3GPP TS 29.412 version 8.1.0