ETSI GSM 08.08-2000 数字蜂窝通信系统(第2+阶段).基站系统-移动业务交换中心(BSS-MSC)接口.第3层规范(版本5.12.0,1996年发布)
Digital Cellular Telecommunications System (Phase 2+); Mobile-Services Switching Centre - Base Station System (MSC - BSS) Interface; Layer 3 Specification (Version 5.12.0 Release 1996)