ITU-T E.520-1988 标准详情
- 标准号:ITU-T E.520-1988
- 中文标题:无溢出设备时,在自动和/或半自动运营中提供的电路数
- 英文标题:number of circuits to be provided in automatic and/or semiautomatic operation , without overflow facilities
- 标准类别:国际电信联盟标准
- 发布日期:1988-11-01
The CCITT recommends that the number of circuits needed for a group should be read from tables orcurves based on the classical Erlang B formula (see Supplements Nos. 1 and 2 at the end of this fascicle which refers to full availability groups). Recom
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