YD/T 1522.4-2009.Technical Requirements for Session Initiation Protocol Part 4 SIP's Applications about call control Based on Softswitch Network. 1范围

YD/T 1522.5-2010.Technical requirements for session initiation protocol Part 5 session initiation protocol based on the unified IMS. 1范围 YD/T 1522.5规定

YD/T 1560-2010.Testing method in 800MHz/2GHz cdma2000 digital cellular mobile communication network:A3/A7 interface. 1范围 YD/T 1560规定了800MHz/2GHz cdma2

YD/T 1562-2013.Technical requirements for 800MHz/2GHz cdma2000 digital cellular mobile telecommunication network equipment high rate packet data (Phas

YD/T 1563-2010.Testing methods for high rate packet data (HRPD) a interface (Phase I) in 800MHz/2GHz cdma2000 digital celluar mobile communication net

YD/T 1576.3-2009.Testing Method of Mobile Station (Including Non Uim Mobile Station) for 800MHz/2GHz cdma2000 Digital Cellular Mobile Telecommunicatio

YD/T 1578-2010.Technical requirements for high rate packet data(HRPD) a interfaces ( phase I ) in 800MHz/2GHz cdma2000 digital cellular mobile communi

YD/T 1588.4-2010.Measurement methods for characteristics of optical fibre cable line Part 4: Chromatic dispersion for optical filbre cable links. 1范围

YD/T 1595.1-2012.Requirements and measurement methods of electromagnetic compatibility for 2GHz WCDMA digital cellular mobile telecommunications syste

YD/T 1672-2010.Test mothed for 800MHz/2GHz cdma2000 digital cellular mobile communication network Broadcast Multicast Services(BCMCS): A interface. 1范