The High-Density Packet Voice digital signal processor (DSP) Module (PVDM2) enables Cisco Systems Integrated Services Routers to provide high-density voice connectivity conferencing and transcoding capabilities in Cisco IP Communications solutions. ...

The PVDM2 8 to 48 Channel Factory Upgrade - Voice DSP module from the FCCE is made by Cisco and can be purchased online via a secure server from OnSale.