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
專家解讀視頻
基本信息
標準編號： PRETS 300 172 : APR 92
標準類別：Draft
出版單位：European Telecommunications Standards Institute
標準頁數：0
標準簡介
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.
替代本標準的新標準
