标题: ISO/IEC 15051:2003 Recall Supplementary Service [打印本页] 作者: gmt88 时间: 2013-7-29 00:15:00 标题: ISO/IEC 15051:2003 Recall Supplementary Service
ISO/IEC 15051:2003(E)
Second Edition
2003-04-01
Information Technology -
Telecommunications and Information Exchange Between Systems -
Private Integrated Services Network -
Specification, Functional Model and Information Flows -
Recall Supplementary Service