Cisco SM-X-PVDM-500 Voice DSP Module for ISR 4000

Equipment Overview

The Cisco SM-X-PVDM-500 is a high-capacity packet voice and fax digital signal processor (DSP) module designed for the Cisco 4000 family of integrated services routers. It provides up to 768 channels of DSP resources, enabling advanced voice codec processing, conferencing, and transcoding services. The module is intended for enterprise voice gateways requiring scalable call-handling capacity within a single hardware slot. It supports dense voice and fax traffic for branch and campus deployments.

Main Parameters

• DSP channels: Up to 768-channel capacity
• Form factor: SM-X module for Cisco 4000 series routers
• Primary function: Packet voice and fax DSP processing
• Codec support: Voice and fax compression, transcoding, and conferencing
• Slot compatibility: SM-X slot on Cisco 4000 family ISR platforms
• Part number: SM-X-PVDM-500 (Cisco)
• Category: Local area network infrastructure component

Key Advantages

This module is selected for enterprise projects requiring high-density voice processing without occupying multiple slots. Its 768-channel capacity reduces hardware footprint and simplifies capacity planning for large-scale VoIP deployments. The SM-X-PVDM-500 delivers deterministic performance for real-time voice traffic, ensuring reliable call quality in converged networks.

Compatibility & Integration

The Cisco SM-X-PVDM-500 is compatible with Cisco 4000 series integrated services routers, fitting into the standard SM-X expansion slot. It integrates with Cisco IOS voice gateway features and supports industry-standard VoIP protocols. Deployment requires the corresponding Cisco router platform and appropriate Cisco IOS software release for DSP resource management.