PRETS 300 172-1992
PRETS 300 172-1992 标准详情
- 标准号：PRETS 300 172-1992
- 中文标题：
- 英文标题：Layer 3 Protocol For Signalling Between Exchanges Of Private Telecommunication Networks For The Control Of Circuit Switched Calls (standard Ecma-143, June 1990)
- 标准类别：欧洲通信ETS,I-ETS,PRI-ETSETS
- 发布日期：
内容简介
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). De
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