IMS缩写的意思

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