ISO/IEC 14844:2003现行
Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Inter-exchange signalling protocol - Do Not Disturb and Do Not Disturb Override supplementary services
出版：International Organization for Standardization
专家解读视频
CSA ISO/IEC 14844:2004 (R2014) - Identical
NBN EN 300 364:2004 - Equivalent
DIN EN 300364 (2004-12) - Identical
NEN ISO/IEC 14844:2003 - Identical
SS EN 300 364 Ed. 1 (1999) - Identical
KS X ISO/IEC 14844:2008 - Identical
