Cisco Packet Voice Digital Signal Processor Modules (PVDM) 128 Channels | PVDM4-128

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Module Specs Product: Cisco PVDM4‑128 Voice DSP Module Voice Channels: 128 (low complexity), 96 (medium), 64 (high complexity) Slot Type: Motherboard slot or T1/E1 NIM slot Compati bility: Cisco 4000 Series Integrated Services Routers (ISRs) Part Number: PVDM4-64 The Cisco PVDM4‑128 is a high-density digital signal processor module capable of supporting up to 128 simultaneous voice channels (lower for more complex codecs). It enables features like conferencing, voice transcoding, packet voice, echo cancellation, and media optimization on Cisco ISR 4000 routers. When installed either on the router motherboard or within a T1/E1 interface module (NIM), this module offloads DSP tasks from the main CPU and provides scalable voice processing for enterprise communication services. Show more