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Cisco

Cisco PVDM3-64U128 | Voice DSP module | 64 channels base, RTU upgradable to 128 | Gen3 DSP | Wideband codecs | Conferencing + transcoding | Secure RTP | ISR G2 compatible

SKU:PVDM3-64U128

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Description

Enable pay‑as‑you‑grow voice scaling with a Gen3 DSP module that starts at 64 channels and can be expanded with RTU licensing to 128 channels. Provides conferencing, transcoding, T.38 fax, and secure RTP for high‑quality unified communications in branch deployments.

Features

- Pay-as-you-grow capacity: 64 channels base, upgradable to 128
- Built-in conferencing and transcoding
- Wideband audio support for enhanced clarity
- SRTP media encryption support
- T.38 fax and modem passthrough
- Tool-less installation in router DSP slots

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: How does the RTU upgrade work?
A: You can apply a Right-To-Use license on the router to increase the active channel count from 64 to 128 without changing hardware.

Q: Will the upgrade require downtime?
A: Channel activation typically requires a brief configuration/license apply step; schedule a maintenance window to minimize impact.

Q: Which codecs are supported?
A: G.711, G.729a/b, G.722 wideband, and G.726, along with T.38 fax relay.

Q: Which platforms are supported?
A: Routers in the Integrated Services Routers G2 family (1900/2900/3900) with compatible Gen3 DSP slots.

Q: Does it support secure voice?
A: Yes, it supports Secure RTP (SRTP) for encrypted media.

Technical Specifications

- Base channel capacity: 64 concurrent voice channels
- RTU upgrade: Expandable to 128 channels via Right-To-Use license
- DSP generation: Gen3 packet voice DSP
- Functions: transcoding, conferencing, media termination
- Supported codecs: G.711, G.729a/b, G.722, G.726
- Fax/modem: T.38 fax relay, modem passthrough
- Voice security: Secure RTP (SRTP)
- Echo cancellation: ITU-T G.168 (up to 128 ms tail)
- Platform compatibility: Integrated Services Routers G2 (1900/2900/3900 series)
- Form factor: Onboard DSP module for router PVDM slot

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