China 'YD/T 2291-2011 ' Industry standard english version:

中华人民共和国行业标准
INDUSTRY STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

YD/T 2291-2011

Issued Date:2011-05-18

Implemented Date:2011-06-01

Issued by:

The Standardization Administration of the People's Republic of China

GB Standard Code	YD/T 2291-2011
Standard Category	China Telecommunication Standards
GB Standard English Title	Technical requirements of interrogating call session control function/serving call session control function (I-CSCF/S-CSCF) of the unified IMS (Release 1)
GB Standard Chinese Title	统一ims查询/服务会话控制设备（i-cscf/s-cscf）技术要求（第一阶段）
Chinese Version Price	$5.00 per 1 page
English Translation Fee	$15.00~$30.00 per 1 page
Member Price	10%~50% off


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