YD/T 1263-2003Technical Requirements for Interworking of network Based on IP with traditional telecommunication network (English PDF)

1 Foreword

YD/T 1263-2003 was issued by Ministry of Industry and Information Technology on 5 June 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 14 pages in English translation.

2 Scope Preview

This standard specifies the PSTN/ISDN networks, mobile networks and other traditional telecommunications network and IP network interworking opening of business, various business implementations and various businesses relay system, but also on the interworking involving numbers and for a predetermined billing. This standard applies to the IP network and the traditional telecommunication network interoperability.

YD/T 1263-2003 falls under ICS 33.040.35, in the field of telecommunications.

This catalogue holds 3,420 other YD/T standards in that field.

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 14 pages (approximate)

Chinese original: about 21,239 characters

4 Related standards

Standards on related subjects:

YZ/T 0173-2020 — Specifications for regulatory data access of intelligent mail and parcel locker and intelligent self-express service machine

YD/T 1730-2008 — Implementation Guide for Security Risk Assessment of Telecom Network and Internet

YD/T 1548.1-2007 — 2GHz WCDMA digital cellular mobile communication network terminal equipment testing method (second stage) - Part 1: Basic functions, operations and performance testing

YD/T 6551-2025 — Identification and resolution system for the Industrial Internet - The interface technical requirements for the recursive node

YD/T 6438-2025 — Technical requirements for control and management of Optical Service Unit (OSU) and fine grain Optical Transport Network (fgOTN) Based OTN

5 Classification and status

International classification (ICS): 33.040.35

Chinese Standard Classification (CCS): M 14

Prefix YD/T: recommended standard.