ITU-T Q.49-1989 标准详情
- 标准号：ITU-T Q.49-1989
- 中文标题：
- 英文标题：Specification for the CCITT Automatic Transmission Measuring and Signalling Testing Equipment ATME No. 2 - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements Study Gr
- 标准类别：国际电信联盟标准
- 发布日期：1989-01-01
