Valid

YD/T 4149-2022Service technical requirements based on unified IMS (second stage) Number one multi-terminal service (English PDF)

基于统一IMS（第二阶段）的业务技术要求一号多终端业务

Preview PDF

This is a limited preview

Buy now to download the full PDF (12 pages)

Need quotation for your management?

Get a formal quotation for YD/T 4149-2022 in 30 minutes.

Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

September 30, 2022

Implementation date

January 1, 2023

Scope

YD/T 4149-2022 is the English-translated version of 基于统一IMS（第二阶段）的业务技术要求一号多终端业务.

YD/T 4149-2022 — This standard applies to the realization of the One Number Multiple Terminal service based on the unified IMS (second phase).

Found what you need?

Document preview — YD/T 4149-2022

National Standard of the People's Republic of China

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2

What this standard covers

This standard applies to the realization of the One Number Multiple Terminal service based on the unified IMS (second phase).

Document data

Estimated length of the Chinese original: 18,165 words.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.

How to Download YD/T 4149-2022

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.