ETS 300 364 Ed.1 (1994)现行
Private Integrated Services Network (PISN); Inter-exchange signalling protocol; Do not disturb and do not disturb override supplementary services [ISO/IEC 14844 (1996), modified]
出版：European Telecommunications Standards Institute
专家解读视频
Do not disturb and do not disturb override supplementary services at Q. See DTR/ECMA-0002 (ECMA-TR/SVC) for service description. See ENV41005 for definition of stage 3. See ENV41004 for definition of Q reference point. To contain PICS proforma.
DIN ETS 300364 (1995-04) - Identical
NBN ETS 300 364:1995 - Identical
PN ETS 300 364:2005 - Identical
SS ETS 300 364:1994 - Identical
