Home / Standards / YD/T 1309-2004 YD/T 1309-2004 Active 与承载无关的呼叫承载控制规范 Standard Type YD ICS N/A CCS N/A Status Active Issue Date 2004-02-09 Implementation 2004-02-09 Centralized Committee 信息产业部 Issuing Authority 信息产业部