Cisco 32-Channel Voice DSP Module - For Voice

Energy-saving. The PVDM4 DSPs offer multiple power-saving modes, including a power-saver mode when the module is not in use. In power-saver mode each PVDM4 can save up to 5 watts of power. Voice-quality management. The PVDM4 modules perform compression, voice-activity-detection, jitter-management, and echo-cancellation functions.