Code of China Chinese Classification Professional Classification ICS Classification Latest Value-added Services

Chinese National Standard Category: Communication network number, signal and connection

English Title: Ringing and tone for telephone automatic switching network
Chinese Title: 电话自动交换网铃流和信号音
Standard No.: GB 3380-1982
Category No.: M12
Issued by: NBS
Issued on: 1982-12-29
Implemented on: 1983-10-1
Status: valid
Superseded by:
Superseded on:
Abolished on:
Superseding:
Word Count:3000 words
Similar Standards: YD/T 4161-2022   YD/T 4158-2022   YD/T 4163-2022   SL 417-2016   GB/T 14733.4-2012   GB/T 28505-2012   GB/T 28500-2012   GB/T 28510-2012   GB/T 28524-2012   GB/T 28506-2012   GB/T 28503-2012   GB/T 28502-2012   YD/T 1522.4-2009   YD/T 1938.2-2009   YD/T 1522.31-2009   YD/T 1938.1-2009   YD/T 1936-2009   YD/T 1919-2009   YD/T 1918-2009   YD/T 1684-2007  
Back          Detail

Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886
Copyright: Foryou Tech Co., Ltd. 2008-2020