PRETS 300 172 : APR 92被替代
LAYER 3 PROTOCOL FOR SIGNALLING BETWEEN EXCHANGES OF PRIVATE TELECOMMUNICATION NETWORKS FOR THE CONTROL OF CIRCUIT SWITCHED CALLS (STANDARD ECMA-143, JUNE 1990)
出版：European Telecommunications Standards Institute
专家解读视频
基本信息
标准编号： PRETS 300 172 : APR 92
标准类别：Draft
出版单位：European Telecommunications Standards Institute
标准页数：0
标准简介
Defines the Layer 3 protocol for signalling for the purpose of circuit switched call control at the Q reference point between Private Telecommunications Network Exchanges (PTNX) connected together within a Private Telecommunications Network (PTN). Defines the Layer 3 protocol for circuit switched call control.
替代本标准的新标准
