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Cisco

Cisco SM-X-PVDM-500 | ISR 4000 PVDM4 DSP module, up to 768 voice channels, transcoding/conferencing/MTP, SM-X slot

SKU:SM-X-PVDM-500

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Description

Add high-density voice DSP resources to 4000 Series Integrated Services Routers with a PVDM4-based SM-X module delivering up to 768 channels for enterprise telephony workloads. Ideal for transcoding, conferencing, media termination point, and voice/fax services in branch and campus deployments. Compatible with select ISR 4000 platforms that support SM-X slots.

Features

- High-density voice DSP scaling for ISR 4000 platforms
- Supports transcoding, conferencing, and media termination functions
- Enables robust SRST and branch UC services
- Flexible capacity up to 768 channels (codec mix dependent)
- Simple SM-X slot installation for rapid expansion

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Which routers are compatible?
A: Select 4000 Series Integrated Services Routers that provide an SM-X slot. Refer to the specific router hardware guide for slot availability and support.

Q: Does this replace onboard PVDM4 resources?
A: No. It supplements or centralizes DSP resources. Onboard PVDM4 (if present) and SM-X PVDM can be used together to meet capacity needs.

Q: Are additional licenses required?
A: The DSP module itself does not require a license, but voice features (e.g., SRST/CME/CUCM integrations, conferencing, transcoding) may require the appropriate software feature licenses on the router or call control platform.

Q: Is the module hot-swappable?
A: Plan a maintenance window and follow the router hardware installation guide. Power down or follow documented OIR procedures if supported by the specific chassis.

Q: How many channels can I expect?
A: Up to 768 channels depending on codec selection and feature mix. Actual capacity varies with configuration.

Technical Specifications

- Module type: SM-X PVDM4 DSP expansion
- Max voice channels: up to 768 (codec mix dependent)
- Supported services: voice transcoding, conferencing, MTP, voice/fax relay, echo cancellation
- Compatibility: Cisco 4000 Series Integrated Services Routers (select models with SM-X slots)
- Slot requirement: 1 x SM-X bay
- Use cases: UC scaling for SRST/CME/CUCM environments, branch/campus voice services
- Operating mode: augments onboard PVDM4 resources where present

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