The 3Com MSR Voice Co-Processor Module (VCPM) provides a transmission channel between the router's system memory and the DSP matrix for voice data, implementing a dedicated TDM exchange for each PCM data voice channel.
The VCPM module is required when the multi-service router is configured to support voice communications.
Product Description: HP Voice Co-Processor Module, control processor
Device Type: Control processor
Enclosure Type: Plug-in module
HP Voice Co-Processor Module Specifications
Part # JD610A