Cisco PVDM4-32 — 32-Channel High-Density Voice DSP Module

Save up to 70% over new list price with this professionally tested, refurbished Cisco PVDM4-32 Packet Voice Digital Signal Processor Module. Backed by Reef Telecom's industry-leading 10-year warranty, this fourth-generation DSP module delivers enterprise-grade voice, video, and conferencing capabilities for Cisco ISR 4000 Series routers.

Key Specifications

• Part Number: PVDM4-32
• Channels: 32-channel high-density voice and video DSP processing
• Compatibility: Cisco ISR 4000 Series (ISR 4321, 4331, 4351, 4451-X) — motherboard slot or T1/E1 NIM
• Codec Support: G.711, G.729, G.722, G.722.1, iLBC, H.264
• Protocol Support: SIP, H.323, MGCP
• Services: Conferencing, transcoding, media optimization, transrating, T1/E1 voice connectivity, echo cancellation
• Power Consumption: 15W with energy-saving modes when idle
• Form Factor: Compact, field-upgradable — 0.67 x 2.50 x 2.62 in.

Why Buy from Reef Telecom?

• Industry-leading 10-year warranty on all refurbished equipment
• Free ground shipping on orders over $300
• Same-day shipping on orders placed before 4PM EST
• Professionally tested to factory specifications
• Reduce e-waste — extend the lifecycle of enterprise-grade hardware

Ideal Use Cases

Deploy the PVDM4-32 in branch offices, small-to-medium enterprise environments, or anywhere you need reliable VoIP, video conferencing, transcoding, or T1/E1 voice connectivity on Cisco Unified Communications platforms. Scales easily — add additional PVDM4 modules to your ISR for higher channel density.

Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.

All products include our industry-leading 10 Year Warranty backed by Reef Telecom.