ITU-T M.1025-具有基本带宽调节的特殊质量国际租用电路的特性-国家数字标准馆

现行

ITU-T M.1020

Characteristics of special quality international leased circuits with special bandwidth conditioning
具有特殊带宽条件的特殊质量国际租用电路的特性

1993-03-12

现行

ITU-T M.1020

Characteristics of special quality international leased circuits with special bandwidth conditioning
具有特殊带宽条件的特殊质量国际租用电路的特性

1993-03-12

现行

ITU-T M.1040

Characteristics of ordinary quality international leased circuits
普通质量国际租赁电路的特点

1988-11-25

现行

ITU-T M.1040

Characteristics of ordinary quality international leased circuits
普通质量国际租赁电路的特点

1988-11-25

现行

ITU-T M.1030

Characteristics of ordinary quality international leased circuits forming part of private switched telephone networks
构成专用交换电话网一部分的普通质量国际租用电路的特性

1988-11-25

现行

ITU-T M.1030

Characteristics of ordinary quality international leased circuits forming part of private switched telephone networks
构成专用交换电话网一部分的普通质量国际租用电路的特性

1988-11-25

现行

ITU-T D.8

Special conditions for the lease of international end-to-end digital circuits for private service
专用国际端到端数字电路租赁的特殊条件

1988-11-25

现行

ITU-T D.8

Special conditions for the lease of international end-to-end digital circuits for private service
专用国际端到端数字电路租赁的特殊条件

1988-11-25

现行

ITU-T D.4

Special conditions for the lease of international (continental and intercontinental) sound- and television-programme circuits for private service
私人服务国际（大陆和洲际）声音和电视节目线路租赁的特殊条件

2005-09-16

现行

ITU-T D.4

Special conditions for the lease of international (continental and intercontinental) sound- and television-programme circuits for private service
私人服务国际（大陆和洲际）声音和电视节目线路租赁的特殊条件

1998-12-15

现行

ETSI EN 300 452

Access and Terminals (AT); Special quality voice bandwidth 4-wire analogue leased line (A4S); Connection characteristics and network interface presentation
接入和终端（AT）；特殊质量语音带宽四线模拟租用线路（A4S）；连接特性和网络接口演示

2001-07-01

现行

ETSI EN 300 449

Access and Terminals (AT); Special quality voice bandwidth 2-wire analogue leased line (A2S); Connection characteristics and network interface presentation
接入和终端（AT）；特殊质量语音带宽双线模拟租用线路（A2S）；连接特性和网络接口演示

2001-07-01

现行

ETSI ETS 300 452

Business TeleCommunications (BTC); Special quality voice bandwidth 4-wire analogue leased line (A4S); Connection characteristics and network interface presentation
商业电信（BTC）；特殊质量语音带宽四线模拟租用线路（A4S）；连接特性和网络接口演示

1996-02-01

现行

ETSI ETS 300 449

Business TeleCommunications (BTC); Special quality voice bandwidth 2-wire analogue leased line (A2S); Connection characteristics and network interface presentation
商业电信（BTC）；特殊质量语音带宽双线模拟租用线路（A2S）；连接特性和网络接口演示

1996-02-01

现行

UNE-ETS 300452-1997

BUSINESS TELECOMMUNICATIONS (BTC). SPECIAL QUALITY VOICE BANDWITH 4-WIre analogue leased line (A4S). Connection characteristics and network interface presentation.
商业电信（BTC）带有4线模拟租用线路（A4S）的特殊质量语音带连接特征和网络接口演示

1997-11-20

现行

UNE-ETS 300449-1997

BUSINESS TELECOMMUNICATIONS (BTC). SPECIAL QUALITY VOICE BANDWIDTH 2-Wire analogue leased line (A2S). Connection characteristics and network interface presentation.
商业电信（BTC）特殊质量语音带宽双线模拟租用线路（A2S）连接特征和网络接口演示

1997-11-20

现行

DIN EN 300449

Access and Terminals (AT) - Special quality voice bandwidth 2-wire analogue leased line (A2S) - Connection characteristics and network interface presentation (Endorsement of the English version EN 300449 V 1.2.1 (2001-07) as German Standard)
接入和终端（AT）.特殊质量语音带宽2线模拟租用线路（A2S）.连接特性和网络接口表示（作为德国标准认可英文版EN 300449 V 1.2.1（2001-07））

2002-01-01

现行

DIN EN 300452

Access and Terminals (AT) - Special quality voice bandwidth 4-wire analogue leased line (A4S) - Connection characteristics and network interface presentation (Endorsement of the English version EN 300452 V 1.2.1 (2001-07) as German Standard)
接入和终端（AT）.特殊质量语音带宽4线模拟租用线路（A4S）.连接特性和网络接口表示（认可英语版EN 300452 V 1.2.1（2001-07）为德国标准）

2002-01-01