3com MSR 8-Channel Voice Processor Module voice network module

8-Channel DSP and Coding/Decoding
The 3Com® MSR 8-Channel Voice Processor Module (VPM) handles Digital Signal Processing (DSP) and Coding/Decoding (CODEC) functions for the MSR, enabling high-quality digital voice connectivity with echo cancellation and noise suppression capabilities for up to 8 distinct voice channels.
Handles Digital Signal Processing (DSP) and Coding/Decoding (CODEC) functions for 3Com Multi-Service routers
Enables high-quality digital voice connectivity with echo cancellation and noise suppression capabilities for up to eight distinct voice channels