
Information technology. Telecommunication and information exchange between systems. Private integrated services network. Circuit mode bearer services. Inter-exchange signalling procedures and protocol
出版:British Standards Institution

专家解读视频
97 [15/03/1999]94 [15/03/1995]
© British Standards Institution 2013
General notes:
Replaced by ETS 300172:1995.
ISO/IEC 11572:1997 - Identical
ISO/IEC 11572:2000 - Identical
ISO/IEC 11572 : 2000(R2011) - Identical