The journal
Stories and ideas
Field notes
A closer look at what moves us
Thoughtful perspective, useful details, and the stories behind the things we choose.
REFURBISHED
Cisco
Cisco SPA-DSP Refurbished - ASR1000 DSP Shared Port Adapter
MPN: SPA-DSP
Request Bulk Quote
Lifetime
Warranty
ISO 9001
Certified Testing
R2v3
Responsible Refurb
25+
Years
5K+
Customers
ISO
Certified
✓
Tested
Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.
Carrier-grade DSP performance for enterprise voice. Backed by 25 years of enterprise trust.
This refurbished Cisco SPA-DSP Digital Signal Processor Shared Port Adapter has been professionally tested, reset to factory defaults, and is ready for immediate installation. The SPA-DSP is a high-performance, carrier-grade module purpose-built for voice transcoding, conferencing, transrating, and media processing services on the Cisco ASR 1000 Series Aggregation Services Routers. Each unit ships fully inspected and verified by WhaleyComm's ISO 9001-certified technicians.The SPA-DSP offloads CPU-intensive media tasks directly to dedicated DSP hardware, delivering low-latency voice processing without taxing the router's main processor. It supports a broad range of codecs including G.711, G.729, AMR-WB, iLBC, and T.38, making it equally capable in modern SIP and H.323 environments as well as legacy MGCP and PSTN gateway deployments. The module installs into a compatible SPA Interface Processor — either the ASR-1000-SIP10 or ASR-1000-SIP40 — and supports hot-swap operation for uninterrupted service continuity.
WhaleyComm has served 5,000+ enterprise customers over 25+ years, and every unit we ship carries a Lifetime Warranty. Sourcing refurbished Cisco hardware through WhaleyComm delivers carrier-grade reliability at a fraction of new list price, without compromising on quality or support.
Technical Specifications
Brand
Cisco
MPN
SPA-DSP
Product Type
Digital Signal Processor Shared Port Adapter
Form Factor
SPA (Shared Port Adapter)
Compatible Platform
Cisco ASR 1000 Series
Supported SIPs
ASR-1000-SIP10, ASR-1000-SIP40
Supported Codecs
G.711, G.729, AMR-WB, iLBC, T.38
Supported Services
Voice transcoding, transrating, conferencing, DTMF
Supported Protocols
SIP, H.323, MGCP
Hot-Swap Support
Yes
Condition
Refurbished
Ideal Use Cases
Enterprise Voice Gateway
Deploy the SPA-DSP in an ASR 1000 Series router to handle high-density voice transcoding and DTMF processing, offloading media workloads from the router CPU in enterprise telephony environments.
Session Border Controller (SBC) Functions
The SPA-DSP provides the hardware-accelerated media termination and codec negotiation required for SBC deployments at the enterprise edge or service-provider peering points.
Conferencing and Transrating Services
Support multi-party conferencing and transrating services at scale by leveraging the dedicated DSP resources of the SPA-DSP within a compatible ASR 1000 chassis.
Legacy and Modern Codec Interworking
Bridge legacy PSTN environments and modern SIP trunks by transcoding between codecs such as G.711, G.729, AMR-WB, and T.38 fax relay within a single integrated platform.
Service-Provider Edge Deployment
Designed for 24/7 carrier-grade operation, the SPA-DSP is well suited for service-provider edge routers where continuous voice processing availability is non-negotiable.
What's Included
Cisco SPA-DSP Digital Signal Processor Shared Port Adapter
Anti-static protective packaging
Professionally tested and verified hardware
Lifetime Warranty — No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. We have stood behind our hardware for 25 years and 5,000+ customers — that is not a marketing line, it is our operating standard.
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
Compatible Platforms
✓
Cisco ASR 1001
✓
Cisco ASR 1002
✓
Cisco ASR 1002-F
✓
Cisco ASR 1004
✓
Cisco ASR 1006
✓
Cisco ASR 1013
Required SPA Interface Processors
✓
ASR-1000-SIP10 — 10-Gbps SPA Interface Processor
✓
ASR-1000-SIP40 — 40-Gbps SPA Interface Processor
✓
The SPA-DSP must be seated in a SIP10 or SIP40 installed within a supported ASR 1000 chassis. It is not compatible with Cisco ASR 9000, ISR 4000, Catalyst switches, or Nexus platforms.
For compatibility verification specific to your environment, contact our engineering team: +1 214 607-4800 or sales@whaleycomm.com
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
Shipping
Orders typically ship within 1-2 business days after payment confirmation. Tracking details are shared once the order has been dispatched.
Returns
Eligible products can be returned according to WhaleyComm's return policy. For DOA, warranty, or product-related issues, contact the support team for replacement or resolution.
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
The SPA-DSP is supported on the Cisco ASR 1001, ASR 1002, ASR 1002-F, ASR 1004, ASR 1006, and ASR 1013. It must be installed into a compatible SPA Interface Processor — either the ASR-1000-SIP10 or ASR-1000-SIP40 — within the chassis. It is not supported on ASR 9000, ISR 4000, Catalyst, or Nexus platforms.
The SPA-DSP supports voice transcoding, transrating, conferencing, and DTMF services with hardware acceleration. Supported codecs include G.711, G.729, AMR-WB, iLBC, and T.38, and the module is compatible with SIP, H.323, and MGCP deployments.
Yes. The SPA-DSP is designed as a hot-swappable SPA form-factor module, allowing field replacement or installation without requiring a full chassis power cycle, which helps maintain service continuity in production environments.
Yes. Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it at no cost — no time limits, no questions asked.
Every unit goes through our ISO 9001-certified testing process: full power-on diagnostics, port-by-port functionality testing, firmware verification, factory reset, and final inspection. A Certificate of Testing ships with every unit.
Cisco SPA-DSP Refurbished - ASR1000 DSP Shared Port Adapter
$99.00
Cisco
Cisco SPA-DSP Refurbished - ASR1000 DSP Shared Port Adapter
MPN: SPA-DSP
$99.00
In Stock — Ships Same Day
