GB/T 17904.1-1999
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 17904.1-1999
ISDN user-network interface data link layer specification and conformance testing method--Part 1:User-network interface data linklayer specification ISDN用户-网络接口数据链路层技术规范及一致性测试方法 第1部分:用户-网络接口数据链路层技术规范
Issued Date:1999-11-11
Implemented Date:2000-06-01
Issued by:
The Standardization Administration of the People's Republic of China