DIN EN 300356-10:2002
综合业务数字网(ISDN).信令系统No.7(SS7).国际接口ISDN用户部分(ISUP)第4版.第10部分:子寻址(SUB)补充业务
Integrated Services Digital Network (ISDN) - Signalling System No. 7 (SS7); ISDN User Part (ISUP) version 4 for the international interface - Part 10: Subaddressing (SUB) supplementary service (ITU-T Recommendation Q.731, clause 8 (1992), modified) (Endor