ETSI EN 302 646-1-2000 综合业务数字网(ISDN).7号信令系统.数字蜂窝通信系统(第2+阶段).用于ISDN-公共陆地移动网(PLMN)信令接口的ISDN用户部分(ISUP)第3版的应用.第1部分:协议规范
Integrated Services Digital Network (ISDN); Signalling System No.7; Digital Cellular Telecommunications System (Phase 2+); Application of ISDN User Part (ISUP) Version 3 for the ISDN-Public Land Mobile Network (PLMN) Signalling Interface; Part 1: Protocol