EN 301 264 : 1.2.1现行
PRIVATE INTEGRATED SERVICES NETWORK (PISN); INTER-EXCHANGE SIGNALLING PROTOCOL; ADVICE OF CHARGE SUPPLEMENTARY SERVICES
出版：European Telecommunications Standards Institute
专家解读视频
Stage 3 of advice of charge supplementary service at Q ref pt. See DTR/ECMA-0002 (ECMA-TR/SVC) for service description. See ENV 41005 for definition of stage 3. See ENV 41004 for definition of Q reference point. To contain PICS proforma.
DS EN 301264 : 2006 - Identical
NF EN 301264 : 2004 - Identical
DIN EN 301264 : 2004 - Identical
NBN EN 301 264 : 2004 - Identical
NEN EN 301264 : 2004 - Identical
PN EN 301 264 : AUG 2005 - Identical
