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

Standard Number: GB/T 3378-1982
Chinese:电话自动交换网用户信号方式
English:Subscriber line signalling system for telephone automatic switching network

Effective Date:1983-10-01
Regulatory Authority:Ministry of Industry and Information Technology（通信）
Issuing Regulatory Authority:National Bureau of Standards

Adheres to international standards:N
PDF Downloadable:Y

You can click the button below to purchase the PDF version, and we will send it to you via email.

Click below to buy the printed version. Shipped via FedEx within 7 days. Full refund if out of stock.

If you encounter the following issues, please click here to contact us, and we will do our best to assist you.
1. You cannot find the standard document you are looking for on our website.
2. You have found the standard document, but our page indicates that PDF download is not available.
3. You need to purchase our translated version.