• Cisco PVDM4-128 voice DSP module with green circuit board and black heat sink
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Cisco

Cisco PVDM4-128 | PVDM4 128-Channel Voice DSP Module for ISR 4000

PVDM4-128

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Description

The PVDM4-128 is a fourth-generation packet voice DSP module providing 128 channels of digital signal processing for voice workloads on compatible Cisco ISR 4300 and 4400 series routers. It supports wideband codecs including G.711, G.729 and G.722, and is suited to voice conferencing, transcoding and secure RTP deployments. The 128-channel capacity differentiates it from lower-density PVDM4 modules and suits branch and small to mid-sized voice gateway deployments.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- 128-channel voice DSP capacity
- Wideband codec support (G.711, G.729, G.722)
- Voice conferencing and transcoding
- Secure RTP support
- Fourth-generation DSP architecture

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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Technical Specifications

FAQs

Technical Specifications

- Module type: PVDM4 voice DSP module
- Capacity: 128 channels
- DSP generation: Gen4
- Supported codecs: G.711, G.729, G.722
- Compatible platforms: Cisco ISR 4300 and 4400 series

FAQs

Q: Which routers is the PVDM4-128 compatible with?
A: It is designed for Cisco ISR 4300 and 4400 series routers that support PVDM4 voice DSP modules.

Q: How many channels does the PVDM4-128 provide?
A: It provides 128 channels of voice DSP processing.

Q: Which codecs does this module support?
A: It supports G.711, G.729 and G.722 codecs, including wideband voice.

Q: Can it be used for conferencing and transcoding?
A: Yes, the module supports voice conferencing and transcoding functions as well as secure RTP.

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