Home / Standards / GB/T 16653-1996 GB/T 16653-1996 Active ISDN data link layer specification for frame mode bearer services 综合业务数字网帧模式承载业务 数据链路层规范 Standard Type GBT ICS 35.100.20 CCS L78 Status 现行 Issue Date 1996-12-17 Implementation 1997-07-01 Responsible Dept 工业和信息化部(通信) Drafting Unit N/A