CISCO PVDM3-192= 192-Channel High-density Voice and Video DSP Module Type: Voice and Video DSP Module Specifications: Maximum Number of Channels in Low-Complexity Codecs: 192 Maximum Number of Channels in Medium-Complexity Codecs: 138 Maximum Number of Channels in High-Complexity Codecs: 88 Platform Support: Cisco 2901, 2911, 2921, 2951, 3925, 3945, 3925-E, and 3945-E Integrated Service Routers.