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Home Networking Router, Security, NPB Cisco PVDM-4= | 4-Channel Voice/Fax DSP Module For Cisco Routers & Gateways

Cisco PVDM-4= | 4-Channel Voice/Fax DSP Module For Cisco Routers & Gateways

Cisco PVDM-4= | 4-Channel Voice/Fax DSP Module For Cisco Routers & Gateways

Brand:

Cisco

Specifications

Description

The Cisco PVDM-4= is a 4-channel Digital Signal Processor (DSP) module designed to enable high-quality voice and fax services on compatible Cisco Integrated Services Routers (ISR) and voice gateways. Supporting up to 4 voice or fax sessions, the PVDM-4= module is ideal for small branch offices, retail outlets, or VoIP deployments needing entry-level voice capability with room to scale.
Built on Cisco’s high-performance DSP technology, this module supports a wide range of voice codecs, echo cancellation, conferencing, transcoding, and secure voice features, allowing businesses to deploy reliable and feature-rich unified communications with flexibility and low cost.

Specifications

Type: Voice/Fax Digital Signal Processor (DSP) Module
Model Number: PVDM-4=
Voice Channels: 4 (G.711)
Fax Channels: 4 (T.38 / G.711 pass-through)
Compatibility: Select Cisco Integrated Services Routers (ISR) and Gateways
Form Factor: Plug-in module
Channels Supported: 4 voice or fax channels
Form Factor: Plug-in DSP module
Compatible Routers: Cisco ISR 1700/1800/2800/2900/3900 series (check specific router compatibility)
Voice Codecs: G.711, G.729a/b, G.723.1, G.726, iLBC
Fax Protocols: T.38, G.711 pass-through
Application Support: Voice termination, conferencing, transcoding, IVR, and voice security
Power Requirements: Minimal – draws power from the router backplane

Features:

4 Voice/Fax Channels – Supports 4 simultaneous G.711 or fax calls.
High-Quality Audio – Supports advanced features such as echo cancellation, voice activity detection (VAD), and comfort noise generation (CNG).
Codec Support – G.711, G.729a/b, G.723.1, G.726, iLBC, and more.
Fax Support – Supports T.38 fax relay and G.711 fax pass-through.
Secure Voice Support – Enables secure voice features when integrated with Cisco IOS.
Scalable – Start with 4 channels and scale by adding higher-density PVDM modules if needed.

Ideal Uses:

Small Offices or Branch Deployments – Low-channel voice needs with ability to scale.
VoIP Rollouts – Enable VoIP and PSTN interconnection for up to 4 users.
Fax Support – Reliable fax over IP (FoIP) capabilities using T.38 or pass-through.
Business Continuity – Add resiliency and localized voice processing for critical sites.

Why Choose Cisco PVDM-4=?

Cisco-Approved – Built to Cisco standards, ensuring optimal compatibility and performance.
Cost-Effective – Entry-level module offering critical voice/fax features without over-investment.
Scalable & Flexible – Add voice capacity only as needed, saving costs over time.
Seamless Integration – Easily integrates with Cisco IOS-based voice and UC solutions.
Future-Ready – Supports essential UC features and secure voice services for evolving needs.

Features

Brand:

Cisco

Warranty:

No Warranty

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