GSM缩写的意思

DL IS-IS CNCC EFCI Bps EAF DFSK SSM SFB EELS GDPS CTDM DCT RIP EEROM DTD DVC AJG DCN APARS ASC DFOS FED S3 mcu AFC ASI CICS ABDL CC CPM STB IM ppm EWT EF MADP RAID CRC SOC GPS QDOS IOB AP NDS ETE APADAS SSG FCN CSE DTP ESC GIMM DVVI UMTS CPS NCBA CAI DS DPON