YD/T 1284-2003The technical requirement for quality of communia-cation for inter. public telecom network-call completion rate post dialing delay for telephone call (English PDF)
公用电信网间通信质量技术要求——电话呼叫的接通率和拨号后时延
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Issued by
Ministry of Industry and Information Technology
Level / Type
National · Recommended
Issue date
July 28, 2003
Implementation date
July 28, 2003
Scope
YD/T 1284-2003 is the English-translated version of 公用电信网间通信质量技术要求——电话呼叫的接通率和拨号后时延.
YD/T 1284-2003 is the Chinese standard "The technical requirement for quality of communia-cation for inter. public telecom network-call completion rate post dialing delay for telephone call".
This standard specifies the public telecommunication network and dial-up connection rate between full time delay after the index and its allocation requirements.
This standard specifies the communication quality indicators include only a telephone call completion rate and delay dial indicators, namely, fixed phone calls, mobile phone calls and IP telephony call completion rate and delay after dialing indicator.
Call termination rates between public telecommunication network and dial indicator is in full after the delay on the basis of indicators developed.
This standard applies to operators Wangjiantongxin management department of quality assessment and quality assessment for operators Wangjiantongxin management, this standard can also be used as network operators planning and design basis. Issued on 2003-07-28, in force from 2003-07-28.
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Document preview — YD/T 1284-2003
National Standard of the People's Republic of China
- Classification
- M10
Contents
- [Preview only]
- 1 Scope
- 2 Normative References
- 2.1 Term
- 3 Terms and Definitions
- 3.2 Abbreviations
- 3.3 Specifications
- 3.4 Product model and designation
- 3.5 Product marking
- 4 Product Classification
- 4.1 General
- 4.2 Model and name
- 4.3 Test Waveform
- 4.4 Product labelling
- 5 Requirements
- 5.2 Chemical components
- 5.3 SPD Disconnector Inspection
- 5.4 Environmental protection property
- 5.5 Material compatibility
- 5.6 Spurious emission
- 5.7 Transmit Spectrum Mask
- 5.8 Time of Rising Edge and Falling Edge
- 5.9 In-band Flatness
- 6 Test methods
- 6.2 Term restrictions
- 6.3 End-of-manufacturing inspection
- 6.4 Type inspection
- 6.5 Phone Program
- 6.6 OTASP/OTAPA Function
- 6.7 Processing of PIN
- 6.8 Fixed Dialing Number (FDN)
- 6.9 Abbreviated Dialing Number (ADN)
- 7 Inspection Rules
- 7.1 Packaging
- 7.2 Marking
- 7.3 Transport
- 7.4 Storage
- 7.5 Safety Test for Temporary Overvoltage Failure
- 7.6 Test of Temporary Overvoltage Withstand Characteristic
- 7.7 SPD Thermal Stability Test
- 8 Marking, Packing, Transport and Storage
- 8.1 Voltage Drop Test
- 8.2 Surge Withstand Capability at Load side
- 8.3 Short-circuit Withstand Capability at Load Side
- 9 Environmental Applicability Test
- 9.1 Vibration Test
- 9.2 High Temperature Test
- 9.3 Low Temperature Test
- 9.4 Alternating Humid Heat Test
- 9.5 Performance requirements for radio resource management
1 Foreword
YD/T 1284-2003 was issued by Ministry of Industry and Information Technology on 28 July 2003 and took effect the same day.
The YD/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.
The document runs to 18 pages in English translation.
2 Scope Preview
This standard specifies the public telecommunication network and dial-up connection rate between full time delay after the index and its allocation requirements. This standard specifies the communication quality indicators include only a telephone call completion rate and delay dial indicators, namely, fixed phone calls, mobile phone calls and IP telephony call completion rate and delay after dialing indicator. Call termination rates between public telecommunication network and dial indicator is in full after the delay on the basis of indicators developed. This standard applies to operators Wangjiantongxin management department of quality assessment and quality assessment for operators Wangjiantongxin management, this standard can also be used as network operators planning and design basis.
YD/T 1284-2003 is filed under Chinese Standard Classification M10, in the field of telecommunications and broadcasting.
This catalogue holds 2,288 other YD/T standards without an ICS number.
In this catalogue, YD/T standards carry edition years from 1982 to 2026.
3 About this standard
Sector: Telecommunication Industry Standard (Recommended)
Issued by: Ministry of Industry and Information Technology
English translation: about 18 pages (approximate)
Chinese original: about 26,289 characters
4 Related standards
Standards on related subjects:
GB/T 47325-2026 — Security technical requirements and test methods for over-the-air updates in the internet of vehicles
GB/T 47324-2026 — Cybersecurity protection requirements for internet of vehicles platforms
YD/T 1730-2008 — Implementation Guide for Security Risk Assessment of Telecom Network and Internet
YD/T 6470-2025 — Technical requirements for DNS over HTTPS
YD/T 3802-2025 — Classification protection requirements for data security in telecom field
YD/T 2537-2025 — Service test method for number portability
5 Classification and status
Chinese Standard Classification (CCS): M 10
Prefix YD/T: recommended standard.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.
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