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Database: 189760 (1 Nov 2025)
YD/T 4452-2023 English PDF
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Standard Title (Description)
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YD/T 4452-2023
English
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(Basic requirements for VoLTE user network interface configuration)
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YD/T 4452-2023
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Basic data
Standard ID
YD/T 4452-2023 (YD/T4452-2023)
Description (Translated English)
(Basic requirements for VoLTE user network interface configuration)
Sector / Industry
Telecommunication Industry Standard (Recommended)
Classification of Chinese Standard
M21
Classification of International Standard
33.030
Date of Issue
2023-12-20
Date of Implementation
2024-04-01
Issuing agency(ies)
Ministry of Industry and Information Technology
Summary
This standard specifies the basic requirements for VoLTE user network interface configuration, which requires users to ensure the normal provision of IMS-based voice calls, video calls, WiFi calls and other services. WiFi access specifically refers to untrusted WLAN access based on the S2b interface. . Its content mainly includes general functional requirements, EPC process requirements, voice call requirements, video call requirements, call switching requirements, emergency service requirements, message requirements, supplementary service requirements, abnormal scene requirements and WiFi call service requirements, etc. This standard applies to VoLTE user network interface configuration based on unified IMS (Phase 2).
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