B-ISSI September 2, 2020September 14, 2019 by Staff1 B-ISSI stands for Broadband Inter-Switching System Interface Popular Abbreviations Meaning YM-BPM CAQDA DGX DPFC A-DMIS DMFD DATAX ABIW B-O-G-B-S-W-R-B-Y-V-R-A VVGM Search for: