China 'GB/T 28503-2012
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 28503-2012
Technical requirements of adaptation layer of No.7 signalling interworking with IP MTP2 user adaptation layer No.7信令与IP互通适配层技术要求消息传递部分 （MTP）第二级用户适配层（M2UA）
Issued Date:2012-06-29
Implemented Date:2012-10-01
Issued by:
The Standardization Administration of the People's Republic of China
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