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PVDM2-16
16-Channel Packet Voice/Fax DSP Module
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PVDM2-16 is a high-performance voice processing module designed for advanced telephony applications and unified communications systems. Engineered as a digital signal processing solution, it enables efficient transcoding, echo cancellation, and voice encoding/decoding to enhance call quality and streamline voice data management in enterprise environments.
Specifically developed for compatibility with leading Cisco platforms, the PVDM2-16 integrates seamlessly into PCIe-based infrastructures, offering a compact and reliable solution for voice gateway deployments. Its robust design and adherence to industry standards make it an ideal choice for upgrading server network interfaces and expanding data center capacity in voice-centric applications.
PVDM2-16 price is $362.00, a 54.8% saving from the Cisco list price of $800.00. PVDM2-16 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for PVDM2-16 for additional pricing. Browse the full Pvdm Voice/Fax Modules series or explore all Cisco products.
An enterprise deploys Cisco ISR 4451 routers loaded with PVDM2-16 Channel Packet Voice/Fax DSP Modules at 20 branch offices to deliver up to 16 simultaneous VoIP calls per site. By offloading echo cancellation, voice activity detection and jitter buffering to the PVDM2-16 DSPs, the solution ensures carrier-grade voice quality and low latency. Outcome: maximized channel density, reduced hardware footprint and accelerated branch roll-outs with predictable OPEX.
A healthcare organization implements Cisco ISR 4321 routers equipped with PVDM2-16 Channel Packet Voice/Fax DSP Modules to support T.38 fax over IP between multiple clinics. The DSP modules handle real-time fax detection, tone relay and error correction, ensuring HIPAA-compliant document exchange. Outcome: seamless legacy fax integration, elimination of costly PSTN lines and enhanced data security.
A financial services firm migrates its on-premises contact center from a legacy TDM PBX to Cisco Unified Communications Manager by installing PVDM2-16 Channel Packet Voice/Fax DSP Modules in existing ISR 3945 routers. These DSPs provide voice transcoding, conferencing and echo cancellation for up to 16 concurrent calls, enabling a phased SIP trunk rollout without service disruption. Outcome: reduced telecom costs, improved call scalability and protection of existing hardware investments.
To get the detailed certification, please go to the Compliance Center.
| PVDM2-16 |  PVDM2-24DM |  PVDM3-64 |  PVDM2-32 |  PVDM3-256 | |
|---|---|---|---|---|---|
| Product Type | Voice Processing Module | Digital Media Module | Voice Processing Module | Network Module / Network Card | Network Module |
| Module Type | Digital Signal Processing | Digital Media Module | N/A | Ethernet | Ethernet |
| Data Rate | N/A | N/A | N/A | 10G | 10Gbps |
| Connector Type | N/A | PCIe | N/A | SFP+ | SFP+ |
| Supported Protocols | SIP, H.323 | TCP/IP | SIP / H.323 / MGCP | TCP/IP, iSCSI, Fibre Channel | TCP/IP, iSCSI |
| Form Factor | PCIe | PCIe | Modular | PCIe | PCIe |
| Operating Temperature | 0 to 55°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | N/A | Cisco Voice Gateways | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP |
| Max Speed | N/A | N/A | N/A | 10Gbps | 10Gbps |
| Supported Features | Voice encoding/decoding, transcoding, echo cancellation | N/A | Digital Signal Processing, Echo Cancellation, Codecs Support | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | N/A | N/A | N/A | 8W | 15W |
| Interface Ports | N/A | N/A | N/A | SFP+ | Ethernet, SFP+ |
| Expansion Slots | N/A | N/A | N/A | N/A | SFP+ |
| Product Name | PVDM2-16 Voice Processing Module | PVDM2-24DM Digital Media Module | Cisco PVDM3-64 Voice Processing Module | PVDM2-32 High Performance Ethernet Module | PVDM3-256 Network Module |
| Height | N/A | N/A | N/A | 0.5 inches | 0.5 inches |
| Width | N/A | N/A | N/A | 3.5 inches | 3.5 inches |
| Depth | N/A | N/A | N/A | 4.9 inches | 7 inches |
| Weight | N/A | N/A | N/A | 0.7 lbs | 1.5 lbs |
The 16-channel packet voice/fax DSP module is perfect for our voice processing needs. It provides reliable performance, ensuring smooth and clear communications across our network.
The PVDM2-16 DSP module has been a great solution for us. It delivers consistent performance for voice and fax processing, making it an essential part of our infrastructure.
This module has been an excellent addition to our system. It provides solid performance, ensuring smooth voice and fax communications with minimal delay.
We rely on the PVDM2-16 for efficient voice processing. It's cost-effective, compact, and provides great performance, making it ideal for smaller networks.
The PVDM2-16 module delivers solid performance. It handles voice and fax traffic efficiently, ensuring clear communications without latency or issues.
The Cisco PVDM2-16 is a high-performance digital signal processor (DSP) module providing 16 simultaneous voice and fax channels for IP routers, enabling efficient call processing, transcoding, conferencing, and fax relay.
The PVDM2-16 is compatible with Cisco ISR G2 and ASR 1000 Series routers that include a PVDM2 slot. Consult Cisco compatibility matrices for specific model guidance.
The module delivers up to 16 simultaneous voice channels and supports mixed voice and fax applications on a single hardware platform.
Supported codecs include G.711 A/μ-law, G.729a/b, G.726, G.723.1, G.722, and G.722.1 for high-definition voice quality and bandwidth efficiency.
Yes. It supports T.38 fax relay and fax pass-through modes, ensuring reliable fax delivery over IP networks.
Power down your compatible router, insert the PVDM2-16 into the designated DSP slot, secure with screws, then power up. The router automatically detects the hardware.
Typical power draw is 12.1 Watts. Actual consumption varies with channel usage and codec complexity.
Yes. You can flexibly allocate DSP resources between voice and T.38 fax channels to meet evolving service demands.
The module supports high-quality conferencing for up to 16 participants using hardware-based mixing to offload router CPU.
No. The PVDM2 offloads DSP tasks from the main CPU, ensuring consistent routing performance and QoS.
Use Cisco IOS commands such as “show voice dsp” and SNMP MIBs to track channel usage, CPU load, and performance statistics.
No additional DSP licensing is needed. Voice feature licensing on the router applies separately for call control and advanced telephony services.
Operating temperature: 0°C to 40°C; humidity: 10%–85% non-condensing. Ensure adequate airflow and rack mounting guidelines.
Cisco provides a limited lifetime warranty for the PVDM2-16. Extended services and SMARTnet support are available separately.
It supports the G.722 and G.722.1 codecs for 7 kHz wideband audio, delivering crystal-clear high-definition voice calls.
Yes. Simply remove the existing PVDM2-8 and install the PVDM2-16 module. Configuration remains unchanged beyond channel capacity updates.