Cisco • SKU PVDM4-128
Cisco PVDM4-128 — PVDM4-128
Cisco PVDM4-128 — Fourth-Generation 128-Channel High-Density Packet Voice Digital Signal Processor (DSP) Module for Cisco 4000 Series ISRs; plug-in motherboard DSP module providing voice/video transcoding, conferencing, transrating, media optimization and secure voice.
- End-of-sale — refurbished only
Download Cisco datasheet ↗ via Cisco official PVDM data sheet (c78-728307); corroborated by router-switch.com PVDM4-128 datasheet PDF
What is the Cisco PVDM4-128?
Cisco PVDM4-128 — Fourth-Generation 128-Channel High-Density Packet Voice Digital Signal Processor (DSP) Module for Cisco 4000 Series ISRs; plug-in motherboard DSP module providing voice/video transcoding, conferencing, transrating, media optimization and secure voice.
TFI supplies the PVDM4-128 refurbished to South African businesses, each unit covered by warranty and optional SLA. As a B-BBEE Level 2 distributor we can quote stock, lead time and price — usually within the same business day.
Specifications
| channels | 128 voice channels (high-density) |
|---|---|
| form factor | Plug-in PVDM4 motherboard DSP module (0.7" H x 2.5" W x 2.6" D) |
| memory | 512 MB RAM |
| codecs | G.711, G.729, G.722, G.726, H.264 (compression, transcoding, transrating, conferencing) |
| echo cancellation | 128 ms tail length, ITU-T G.168 compliant |
| functions | Voice/video transcoding, conferencing, media optimization, secure voice; VAD, jitter management, compression |
| power | Power-saver mode saves up to ~5 W per module when idle |
| compatibility | Cisco 4000 Series ISRs (4321/4331/4351/4431/4451-X), single PVDM4 slot; NOT supported on ISR 4461; IOS XE 3.15S+ |
| operating temp | 32-122 F (0-50 C) |
| eol status | Module actively sold (new + refurb); surrounding ISR4200/4300/select-4400 platforms EoS last-order 2023-11-07 (spares 2024-01-26) |
End-of-life status
The PVDM4-128 is end-of-sale
Cisco has declared the PVDM4-128 end-of-sale, so it is no longer manufactured new. TFI supplies it professionally refurbished and tested.
Why refurbished still makes sense: a refurbished PVDM4-128 delivers the same proven performance at a fraction of the new-equipment cost, backed by a TFI warranty and SLA. It is the practical choice for spares, expansion of an existing deployment, or extending the life of a network you are not ready to replace. Talk to us about a successor model if you are planning a refresh.
Frequently asked questions
- What is the Cisco PVDM4-128?
- Cisco PVDM4-128 — Fourth-Generation 128-Channel High-Density Packet Voice Digital Signal Processor (DSP) Module for Cisco 4000 Series ISRs; plug-in motherboard DSP module providing voice/video transcoding, conferencing, transrating, media optimization and secure voice.
- Is the PVDM4-128 still supported?
- The Cisco PVDM4-128 has reached end-of-sale, so it is supplied refurbished. TFI back every refurbished unit with a warranty and SLA options, which makes it a cost-effective choice where the platform still fits your network.
- Can TFI deliver the PVDM4-128 in South Africa?
- Yes. TFI is a South African distributor (B-BBEE Level 2) and ships the Cisco PVDM4-128 nationwide. Send us the SKU and we come back with stock, lead time and price — usually the same business day.
Also in the Cisco ISR4300 Series Routers
-
ACS-4320-BEZEL
Cisco ISR 4320 Series Front Bezel — decorative/protective front panel accessory for ISR 4321 and ISR 4331 routers, 1U rack-mount form factor
-
ACS-4320-FanASSY
Cisco ISR 4330 Fan Assembly, Spare — FRU hot-swap fan tray for the ISR 4330 (ISR 4300 series) integrated services router, front-to-back (FD) airflow
-
ACS-4320-RM-19
Cisco ACS-4320-RM-19 — 19-inch rack mount kit for Cisco ISR 4320 Series routers; physical accessory, not a module or license
-
ACS-4330-FanASSY
Cisco ISR 4330 Fan Assembly Spare — replacement cooling fan tray for Cisco ISR 4331 Integrated Services Router, field-replaceable unit (FRU)
-
ACS-4330-RM-19
Cisco 19-inch Rackmount Kit for ISR 4330/4430 Series Integrated Services Routers — 2-bracket mounting accessory, standard EIA 19-inch rack form factor
Also compatible with
Verification sources (6)
- https://www.cisco.com/c/en/us/products/collateral/routers/4000-series-integrated-services-routers-isr/data_sheet_c78-728307.html
- https://www.router-switch.com/pdf2html/pdf/pvdm4-128-datasheet.pdf
- https://www.provantage.com/cisco-systems-pvdm4-128~7CSC9XWE.htm
- https://esaitech.com/products/cisco-pvdm4-128-128-channel-high-density-voice-dsp-module
- https://www.cdw.com/product/cisco-fourth-generation-128-channel-high-density-packet-voice-digital-signa/3198271
- https://www.cisco.com/c/en/us/products/collateral/routers/4000-series-integrated-services-routers-isr/select-isr4k-series-platform-eol.html
Need pricing on PVDM4-128?
Send us the SKU. We come back with stock, lead time and price — typically within the same business day.