PRETS 300 172:1992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 300 172:1992
发布时间：1992/4/1 0:00:00
标准类别：Draft
出版单位：European Telecommunications Standards Institute
标准页数：149
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
