Product Questions? Ask Our Experts! 888.230.3661 sales@creationnetworks.net Contact us today for your best package pricing and product availability.

Cisco PVDM4-256 - Plug-In Module - On-board motherboard or T1/E1 module slot - 256-channel high-density voice DSP module

Regular price $12,893.45
Shipping calculated at checkout.
Cisco  |  SKU: PVDM4-256

Shipping Availability*

Free Ground Shipping on Most Orders Over $250.00

Looking for the best price or expert advice? Give us a call at 1-888-230-3661 or use the Live Chat below. Buying 1 or 100, you may qualify for greater savings beyond the advertised price.

Accepted payment methods

Product Overview

The Cisco PVDM4-256 is a high-density voice and video DSP (Digital Signal Processor) module for Cisco ISR 4000 series routers, providing 256 DSP channels for voice transcoding, conferencing, and media processing in enterprise unified communications deployments. It is installed in a PVDM slot on supported ISR 4000 series routers and scales the router's voice processing capacity for large enterprise call manager and UC deployments.

Cisco PVDM4-256 DSP Module

Key Features

  • 256 DSP Channels: High-density voice and video processing capacity for large enterprise deployments.
  • ISR 4000 Series Compatible: Installs in the PVDM4 slot on Cisco ISR 4331, 4351, 4431, 4451, and other ISR 4000 series routers.
  • Voice Transcoding and Conferencing: Provides hardware-accelerated media processing for CUCM and Cisco UC deployments.
  • Scales Router Voice Capacity: Adds DSP capacity without requiring a separate media processing appliance.

Typical Applications

  • Enterprise ISR 4000 routers handling high-volume voice call processing
  • Cisco CUCM deployments requiring hardware transcoding
  • Large enterprise UC deployments with conferencing and media resource requirements
  • Branch office routers with voice gateway functions

Technical Specifications

Specification Detail
Model / SKU PVDM4-256
DSP Channels 256
Compatible Platform Cisco ISR 4000 series (PVDM4 slot)
Function Voice transcoding, conferencing, media processing
Form Factor PVDM module (internal router slot)

Frequently Asked Questions

What ISR 4000 models support the PVDM4-256?
The PVDM4-256 is compatible with Cisco ISR 4331, 4351, 4431, and 4451 routers with available PVDM4 slots. Confirm slot availability and maximum PVDM capacity with your router's hardware guide before ordering.
Is SmartNet available?
Yes. Cisco SMARTnet coverage is available through Creation Networks.
NATIONWIDE AV SERVICES

Nationwide Audiovisual Services, Design, Installation & Support

Creation Networks is a trusted nationwide partner for complete audiovisual solutions — delivering expert AV system sales, professional design, programming, installation, and ongoing support to organizations across the United States.

From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.

Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.

CREATION NETWORKS — A PARTNER YOU CAN TRUST SINCE 2006