Cisco Fourth-Generation Packet Voice Digital Signal Processor Module
Best high-density voice module for enterprise network communication scaling.
This module is the essential engine for scaling high-density voice traffic on your existing infrastructure. It sacrifices modular flexibility for pure, dedicated processing power, making it the most reliable way to bridge legacy TDM frameworks with modern IP-based communication.
Who it's for
- Network administrators needing to maximize limited router slot capacity
- IT teams prioritizing crystal-clear voice quality and bandwidth efficiency
- Cisco infrastructure managers seeking seamless hardware deployment and scaling
Who should skip it
- Budget-conscious buyers exploring cost-effective software or third-party alternatives
- Organizations requiring hardware flexibility outside the Cisco ecosystem
- Generalists lacking advanced Cisco IOS XE configuration expertise
Performance breakdown
Voice Processing Density
Handles high-volume concurrent calls with exceptional efficiency and minimal latency.
Codec Versatility
Broad support for industry-standard codecs ensures seamless interoperability across diverse networks.
Scalability Potential
Field-upgradable architecture allows your infrastructure to grow alongside evolving business demands.
Platform Integration
Engineered specifically for the Cisco 4451-X for flawless hardware-level compatibility.
Media Optimization
Advanced packet processing ensures high-fidelity audio for complex conferencing and transcoding.
Thermal Reliability
Maintains stable performance within standard enterprise server room temperature ranges.
Key Specs
Device Type
Voice DSP module
Model
Fourth-Generation 64-Channel High-Density Packet Voice Digital Signal Processor Module
Connectivity Technology
Wired
Form Factor
PCIe Full-Height
RAM Installed
512 megabyte
Power Consumption
0.0 watts
Weight
1.27 ounce
Operating Temperature
32 to 122 degrees Fahrenheit
Compatibility
Cisco 4451-X
Interface Type
PCIe
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