Cisco PVDM4-128

The Cisco PVDM4-128 is a high-density digital signal processor (DSP) module that is used in Cisco Integrated Services Routers (ISRs) and Cisco Voice Gateways. It is designed to provide hardware acceleration for voice and video applications, enabling the routers to handle a large number of concurrent voice and video calls. The PVDM4-128 module supports up to 128 channels of voice and video processing, allowing for efficient handling of voice codecs, echo cancellation, transcoding, and other real-time media processing tasks. It is commonly used in enterprise and service provider networks to enable voice and video services, such as IP telephony, video conferencing, and unified communications. By offloading the processing tasks to the PVDM4-128 module, the router's main CPU is freed up to handle other network functions, resulting in improved performance and scalability for voice and video applications.