United States$5,000,000+
Inventory Delivered By
J
James Thompson
5
The 256-channel DSP module is perfect for handling high-density traffic. It ensures high-quality voice and video processing with excellent performance.
PVDM4-256
256-channel DSP module
FEATURED DEAL
Name:
PVDM4-256
- Description:
- 256-channel DSP module
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818250466077
- Condition:
- Warranty:
- 3
- List Price:
$12,860.00
- Price:
$298.0097.7% off
Quantity:
1
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PVDM4-256 Overview
PVDM4-256 is a high-performance voice processing module engineered to deliver efficient, scalable voice service integration with enterprise-grade communication platforms. Designed as a DSP card with a modular PCI Express form factor, this module facilitates robust call processing while supporting integration with routers, IP gateways, and unified communications systems.
PVDM4-256 offers reliable compatibility with a range of commercial communication infrastructures and supports voice protocols including SIP and TCP/IP. With its optimized design for 256-channel voice processing and DSP acceleration, this module is ideal for expanding telephony capabilities in modern data centers and network edge devices.
PVDM4-256 price is $298.00, a 97.7% saving from the Cisco list price of $12,860.00. PVDM4-256 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for PVDM4-256 for additional pricing. Browse the full Pvdm Voice/Fax Modules series or explore all Cisco products.
PVDM4-256 Specifications
- Product Type
- Voice Processing Module
- Module Type
- DSP Card
- Data Rate
- N/A
- Connector Type
- PCI Express
- Supported Protocols
- SIP / TCP/IP
- Form Factor
- Modular
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Enterprise Routers & Communication Systems
- Max Speed
- N/A
- Supported Features
- 256-channel voice processing, DSP acceleration
- Power Consumption
- N/A
- Interface Ports
- N/A
- Expansion Slots
- N/A
- Product Name
- PVDM4-256 Voice Processing Module
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
PVDM4-256 Use Case
High-Density VoIP Call Processing for Enterprise Contact Centers
In a global call-center deployment, integrating the PVDM4-256-256-channel DSP module into Cisco ISR routers enables processing of 1,000+ simultaneous SIP trunks on a single chassis. This consolidation reduces hardware footprint by 40%, lowers OPEX through streamlined maintenance, and delivers carrier-grade voice quality (MOS ≥4.1) to improve customer satisfaction and operational efficiency.
Carrier-Grade Media Transcoding & Conferencing for Service Providers
A Tier-1 service provider leverages the PVDM4-256-256-channel DSP to perform real-time codec transcoding (G.711, G.729, G.722) and multi-party conferencing at network edge POPs. The module scales up to 256 simultaneous streams, ensuring seamless interoperability across legacy and IP-only networks, boosting service uptime to 99.999% and increasing ARPU by enabling premium conferencing add-ons.
Secure Voice Encryption & Low-Latency Communications for Government Networks
A federal agency deploys the PVDM4-256-256-channel DSP module for FIPS-compliant AES-256 voice encryption across remote field offices. Supporting 256 encrypted channels with sub-5 ms latency, it ensures mission-critical communications remain secure without sacrificing call clarity, fully meeting DoD security mandates and enhancing operational readiness.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 PVDM4-256 |  PVDM2-24DM |  PVDM2-8 |  PVDM3-32 |  PVDM2-64 | |
|---|---|---|---|---|---|
| Product Type | Voice Processing Module | Digital Media Module | Network Module / Network Card | Digital Signal Processing Module | Network Card |
| Module Type | DSP Card | Digital Media Module | WAN | DSP | Ethernet |
| Data Rate | N/A | N/A | 1Gbps | 1Gbps | 10Gbps |
| Connector Type | PCI Express | PCIe | RJ-45 | PCIe | SFP+ |
| Supported Protocols | SIP / TCP/IP | TCP/IP | TCP/IP | TCP/IP, VoIP | TCP/IP |
| Form Factor | Modular | PCIe | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Enterprise Routers & Communication Systems | N/A | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP | Cisco, Dell, HP |
| Max Speed | N/A | N/A | 1Gbps | 1Gbps | 10Gbps |
| Supported Features | 256-channel voice processing, DSP acceleration | N/A | Auto-negotiation / Jumbo Frames / QoS | Multi-channel processing, Auto-negotiation, QoS | Auto-negotiation, Jumbo Frames, QoS |
| Power Consumption | N/A | N/A | 10W | 15W | 15W |
| Interface Ports | N/A | N/A | Ethernet | PCIe | SFP+ |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | PVDM4-256 Voice Processing Module | PVDM2-24DM Digital Media Module | PVDM2-8 WAN Module | PVDM3-32 | PVDM2-64 High-Speed Network Module |
| Height | N/A | N/A | 1.5 inches | 0.8 inches | 1.2 inches |
| Width | N/A | N/A | 3.5 inches | 3.5 inches | 3.4 inches |
| Depth | N/A | N/A | 0.5 inches | 7.5 inches | 6.7 inches |
| Weight | N/A | N/A | 0.4 lbs | 1.2 lbs | 0.75 lbs |
Reviews & Ratings
S
Samantha Turner
4
The PVDM4-256 module has exceeded expectations. It processes voice and video flawlessly, making our network more efficient and scalable.
R
Robert Wilson
5
This high-density DSP module handles massive volumes of voice and video traffic with ease. The performance has been outstanding across all our systems.
D
David Allen
3
The PVDM4-256 is an essential part of our system. It provides excellent processing power for voice and video, ensuring smooth communication.
O
Olivia Lee
4
With the PVDM4-256, our voice and video quality has dramatically improved. It's a high-performance module that integrates seamlessly into our network.
Questions & Answers
What is the PVDM4-256 256-Channel DSP Module?
The PVDM4-256 is a high-density digital signal processing (DSP) module designed to deliver up to 256 voice or data channels on supported Cisco ISR and ASR routers.
How many voice and data channels does the PVDM4-256 support?
The module supports up to 256 simultaneous voice or data channels, enabling large-scale transcoding, conferencing and packet telephony applications.
Which Cisco routers are compatible with the PVDM4-256 module?
The PVDM4-256 is compatible with Cisco ISR 4000, 4400 and ASR 1000 series routers that feature a PVDM4 expansion slot.
What DSP functions does the PVDM4-256 enable?
It provides industry-leading DSP services such as G.711/G.729 transcoding, conferencing, transcoding, media termination and packet voice streaming.