ITU E.422-1996 标准详情
- 标准号:ITU E.422-1996
- 中文标题:观察在国际呼出电话服务质量
- 英文标题:Observations On International Outgoing Telephone Calls For Quality Of Service
- 标准类别:国际电信联盟ITU
- 发布日期:
Describes service observation in the international service in order to assess the quality of service obtained by the calling subscriber. It is essential to have factual or objective recording of observations (i.e. successful and unsuccessful calls),
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