3630 2X4 VCB MODULE Digital voice conference bridge module with a maximum capacity of eight bridges. The eight bridges are partitioned into two groups of four, each group has a pool of 12 inputs which can be allocated as desired across the four bridges. T

3630 2X4 VCB MODULE Digital voice conference bridge module with a maximum capacity of eight bridges. The eight bridges are partitioned into two groups of four, each group has a pool of 12 inputs which can be allocated as desired across the four bridges. This module is installed in the DSP slot of the 3630 and is mutually exclusive with Tone or DDS modules (90-0512-01, 90-0160-01).