EN 300 172 : 1.5.1现行
PRIVATE INTEGRATED SERVICES NETWORK (PISN); INTER-EXCHANGE SIGNALLING PROTOCOL; CIRCUIT-MODE BASIC SERVICES
出版：European Telecommunications Standards Institute
专家解读视频
Defines layer 3 protocol for signalling for the support of circuit-mode bearer services (used either on their own or in support of teleservices) at the Q reference point between Private Integrated Services Network eXchanges (PINX) connected together within a Private Integrated Services Network (PISN). The Q reference point is explained in ETS 300 475-1.
NEN EN 300172 : 2003 - Identical
NF EN 300172 : 2003 - Identical
NBN EN 300 172 : 2003 - Identical
I.S. EN 300172:2001 - Identical
DS EN 300172 : 2004 - Identical
DIN EN 300172 : 2004 - Identical
PN EN 300 172 : JULY 2005 - Identical
