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Home Networking Router, Security, NPB Routers Cisco PVDM-256K-20 | 20-Channel Packet Voice/Fax DSP Module for Cisco Voice Routers

Cisco PVDM-256K-20 | 20-Channel Packet Voice/Fax DSP Module for Cisco Voice Routers

Cisco PVDM-256K-20 | 20-Channel Packet Voice/Fax DSP Module for Cisco Voice Routers

Brand:

Cisco

Specifications

Product Description:

The Cisco PVDM-256K-20 is a high-performance 20-channel Packet Voice/Fax Digital Signal Processor (DSP) module designed to enhance the voice and fax capabilities of Cisco voice-enabled routers. Equipped with a 256K DSP architecture, this module supports robust voice compression, echo cancellation, conferencing, and fax-over-IP (FoIP), making it ideal for VoIP networks, PSTN gateways, and unified communications systems.
Compatible with Cisco 1700, 2600, and 3700 series routers, the PVDM-256K-20 enables up to 20 simultaneous voice or fax channels, providing scalable and reliable DSP resources for small to medium businesses, branch offices, and enterprise telephony deployments. Its plug-and-play design ensures quick installation and seamless integration into your existing Cisco infrastructure.

Features:

Supports 20 concurrent voice and fax channels
256K DSP memory for superior processing power and voice quality
Compatible with Cisco 1700, 2600, 2600XM, and 3700 series routers
Supports major voice codecs: G.711, G.729, G.726, G.728, G.723
Supports Fax-over-IP (FoIP) protocols including T.38 and Cisco Fax Relay
Advanced echo cancellation compliant with G.168 standard
Enables voice conferencing, transcoding, and compression
Plug-and-play internal module for easy installation and upgrade
Ideal for VoIP deployments, PSTN gateways, call centers, and branch offices

Specifications:

Model Number: PVDM-256K-20
Product Type: Packet Voice/Fax DSP Module
DSP Memory Size: 256 KB
Channels Supported: Up to 20 simultaneous voice or fax channels
Compatible Platforms: Cisco 1700, 2600, 2600XM, 3700 Series Routers
Voice Codecs Supported: G.711, G.729A/B, G.726, G.728, G.723
Fax Protocols Supported: T.38, Cisco Fax Relay
Echo Cancellation: G.168-compliant (echo suppression)
Voice Features: Voice compression, jitter buffering, transcoding, conferencing
Supported Protocols: SIP, H.323, MGCP
Form Factor: Internal router module (plug-in card)
Power Consumption: Powered by host router chassis (low power usage)
Use Cases: VoIP deployments, PSTN gateway voice processing, unified communications, call centers, branch offices
Installation: Plug-and-play internal installation
Operating Temperature: Standard commercial temperature range (0°C to 40°C)
Dimensions: Compact module designed to fit Cisco router slots

Features

Brand:

Cisco

Warranty:

1 Year

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