The first stage
The first stage, Total:29 items.
The international standard classification for "The first stage" includes: Telecommunication systems in general , Other equipment for radiocommunications , Data communication networks , Telecommunication services. Applications .
The Chinese standard classification for "The first stage" includes: Communication network in general , Radio communication equipment , Data communication equipment , Communication network performance index and testing , Telecommunication services , Mobile communication equipment .
Professional Standard - Post and Telecommunication
- YD/T 2292-2011 Test method of interrogating/serving call control function (I-CSCF/S-CSCF) of the unified IMS (Release 1)
- YD/T 1933-2009 Technical Requirements of Services Based on the Unified IMS IP Centrex Service (Release 1)
- YD/T 2569-2013 LTE digital cellular mobile communications network X2 interface test method (Phase 1)
- YD/T 1551-2007 Testing Methods for 2GHz WCDMA Digital Cellular Mobile Communication Network Iub Interface (Phase Ⅰ)
- YD/T 2174-2010 Test methods for secure user plane location service (Phase 1)
- YD/T 2566.2-2013 LTE digital cellular mobile communications network S1 interface technical requirements (Phase 1) Part 2: Layer 1
- YD/T 2011-2009 Technical Requirements of Services based on the Unified IMS Call Waiting (CW) and Call HOLD (HOLD) Services (Release 1)
- YD/T 2008-2009 Technical Requirement for Services based on the Unified IMS Customized Multimedia Alerting Service (Release 1)
- YD/T 2010-2009 Technical Requirements of Services based on the Unified IMS Multimedia Conferencing Service (Release 1)
- YD/T 2186-2010 Technical requirements for Proxy Call Session Control Function (P-CSCF) of the unified IMS (Phase 1)
- YD/T 1934-2009 Technique Requirements for IMS based Group Management Service (Phase 1)
- YD/T 1549-2007 Testing Methods for 2GHz WCDMA Iur Interface (Phase Ⅰ)
- YD/T 2007-2009 Function and architecture for the Unified IMS
- YD/T 1695-2007 Technical Requirements of Access Network for IPTV (Phase I)
- YD/T 1929-2009 Requirements for the Unified IMS (Phase 1)
- YD/T 1930-2009 General Technical Requirements of the Networking for the Unified IMS (Release 1)
- YD/T 2541-2013 Technical requirement for emergency call service based on the unified IMS (phase I)
- YD/T 1935-2009 Testing Methods for IMS based Group Management Service (Phase 1)
- YD/T 2568.2-2013 LTE digital cellular mobile communications network X2 interface technical requirements (Phase 1) Part 2: Layer 1
- YD/T 2294-2011 Testing Method of Home Subscriber Server (HSS) of the Unified IMS (Release 1)
- YD/T 2187-2010 Technical requirements for Home Subscriber Service (HSS) of the unified IMS (Phase 1)
工业和信息化部
- YD/T 3988-2021 Technica | requirement of 5G super ior universal module (Phasel )
- YD/T 4114.1-2022 Technical requirements of virtual Optical Line Terminals (OLT)(Phase 1)—Part 1 : General requirements
Alliance of Telecommunications Industry Solutions （ATIS)
- ATIS 1000023-2008 ETS Phase 1 Network Element Pre-Pub
SCC
- CSA Z768-1994(R1999) Phase I Environmental Site Assessment
- CSA Z768-1994 Phase I Environmental Site Assessment
- CSA Z768-2001(R2022) Phase I Environmental Site Assessment
Military Standards (MIL-STD)
- DOD A-A-54374-1991 CURING UNIT, DENTURE, ONE STAGE
SAE - SAE International
- SAE CRP-009-1995 Heavy Truck Crashworthiness - Phase I
