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YD/T 1231-2002 English PDF

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YD/T 1231-2002EnglishRFQ ASK 3 days [Need to translate] Technical specification for call transfer services through fixed network exchange Valid YD/T 1231-2002

Standard similar to YD/T 1231-2002

YD/T 4045   YD/T 4046   YD/T 4044   

Basic data

Standard ID YD/T 1231-2002 (YD/T1231-2002)
Description (Translated English) Technical specification for call transfer services through fixed network exchange
Sector / Industry Telecommunication Industry Standard (Recommended)
Date of Issue 6/24/1905
Regulation (derived from) Communications industry website