标题: ISO/IEC 21411:2001 Signalling Interworking Between QSIG and H.323 - Call Diversi [打印本页] 作者: gmt88 时间: 2013-7-8 07:20:47 标题: ISO/IEC 21411:2001 Signalling Interworking Between QSIG and H.323 - Call Diversi
ISO/IEC 21411:2001(E)
First Edition
2001-08-15
Information Technology -
Telecommunications and Information Exchange Between Systems -
Corporate Telecommunication Networks -
Signalling Interworking Between QSIG and H.323 -
Call Diversion Supplementary Services