YD/T 4135-2022 Active Industry standards-Postal and telecommunications

YD/T 4135-2022 LTE network implementation technical requirements for number portability (YD/T 4135-2022)

Publish Date: 2022-09-30 Implement Date: 2023-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: YD/T 4135-2022

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: Communication network number, signal, and connection

ICS Name: Exchange and signaling systems

Publish Date: 2022-09-30

Implement Date: 2023-01-01

Scope

This document is applicable to the number portability technology solutions under the following two transition scenarios: using VoLTE technology for voice services in LTE networks, and employing CSFB and dual-standby modes via the circuit-switched domain (2G/3G).

Development Information

Related Standards

GB 3376-1982 Abolished

GB 3376-1982 Inband pulsing single frequency line signalling system for telephone automatic switching network

Publish Date: 1982-12-29

GB/T 3377-1982 Active

GB/T 3377-1982 Multifrequency register signalling system for telephone automatic switching network

Publish Date: 1982-12-29

GB/T 3378-1982 Active

GB/T 3378-1982 Subscriber line signalling system for telephone automatic switching network

Publish Date: 1982-12-29

GB/T 3380-1982 Active

GB/T 3380-1982 Ringing and tone for telephone automatic switching network

Publish Date: 1982-12-29

GB 3971.2-1983 Abolished

GB 3971.2-1983 Interoffice junction digital line signalling system for telephone automatic switching network

Publish Date: 1983-12-15

GB/T 5442-1985 Abolished

GB/T 5442-1985 The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network

Publish Date: 1985-10-30