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CISCO2851-V/K9
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2851 Voice Bundle,PVDM2-48,SP Serv,128F/512D
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Name:
CISCO2851-V/K9
- Description:
- 2851 Voice Bundle,PVDM2-48,SP Serv,128F/512D
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818217104905
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$7,395.00
- Price:
$3,357.0054.6% off
Quantity:
1
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CISCO2851-V/K9 Overview
CISCO2851-V/K9 is a fixed router solution engineered for branch and enterprise environments, featuring a robust architecture that supports reliable dual-power configurations and advanced WAN/LAN interfaces with 10/100 Ethernet connectivity. Its design integrates voice and VPN capabilities along with dedicated modules for WAN optimization, ensuring performance and security in mission‐critical deployments.
CISCO2851-V/K9 provides comprehensive integrated services with modular expansion slots that enable interface upgrades and secure VPN features essential for remote connectivity. It delivers verified throughput capacity, built-in redundancy for high availability, and reliable performance, making it an optimal choice for business and enterprise branch deployments.
CISCO2851-V/K9 price is $3,357.00, a 54.6% saving from the Cisco list price of $7,395.00. CISCO2851-V/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CISCO2851-V/K9 for additional pricing. Browse the full Router Isr 2800 series or explore all Cisco products.
CISCO2851-V/K9 Specifications
- Product Type
- Enterprise Router
- Brand
- Cisco
- VPN Support
- IPSec VPN
- Power Source
- AC Power Supply / Redundant
- Routing Protocols
- OSPF / BGP / EIGRP / RIP / Static Routing
- Architecture
- Fixed
- WAN Configuration
- Dual WAN
- WAN Ports
- 2 WAN
- Ethernet Technology
- 10/100
- Connectivity Type
- Wired / Ethernet
- Network Protocols
- IPv4, IPv6
- Remote Management
- Telnet, SSH, SNMP
- Compliance Standards
- FCC, CE
- Wireless Support
- No
- Speed/Capacity
- Fast Ethernet
- Firewall Features
- Yes
- Features
- VPN, Voice, IPv6 Compatible, Firewall
- Use Case
- Business
- Management
- Managed
- Form Factor
- Desktop
- Integrated Services
- Voice, WAN Optimization
- High Availability Support
- Supported
- EMC
- FCC Part 15
- Throughput Capacity
- 75 Mbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall, Intrusion Prevention, VPN
- Expansion Slots
- EHWIC
- Modular Slots Available
- 2 Slots
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 256 MB
- Flash Memory
- 128 MB
- Interface Ports
- RJ-45, SFP
- Power
- 210 W
- Device Type
- Router
- Product Name
- CISCO2851-V/K9
CISCO2851-V/K9 Use Case
Distributed Branch Office Voice and Data Convergence with CISCO2851-V/K9-2851 Voice Bundle
Scenario: A national retail chain connects 15 remote stores to its headquarters over MPLS for unified voice and data. Deployed CISCO2851-V/K9-2851 Voice Bundle with PVDM2-48 and SP Serv to handle up to 48 simultaneous HD VoIP calls alongside secure LAN/WAN traffic. Benefit: Achieves 30% reduction in operational costs through centralized management, enforces end-to-end QoS for zero voice degradation, and scales seamlessly as new branches come online.
Service Provider SIP Trunk Aggregation and Subscriber Scaling
Scenario: A regional service provider delivers hosted PBX and SIP trunking to 500+ small business customers. Leveraging CISCO2851-V/K9-2851 Voice Bundle,PVDM2-48,SP Serv,128F/512D for high-density SIP session aggregation and real-time transcoding. Benefit: Supports over 128 concurrent SIP trunks with full DSP offload, enabling 40% lower latency and rapid on-boarding of new subscribers while maintaining carrier-grade reliability and feature parity.
Secure Contact Center Voice and Video Integration in Financial Services
Scenario: A mid-tier financial institution upgrades its 120-seat contact center to handle voice, video calls, and secure messaging across on-premises and remote agents. The CISCO2851-V/K9-2851 Voice Bundle with PVDM2-48 and SP Serv provides advanced media resources, encryption, and session border control. Benefit: Delivers 99.99% uptime, enforces PCI DSS compliance through TLS/SRTP encryption, and improves first-call resolution by 25% via integrated video support and real-time analytics.
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Product Comparison Table 
| CISCO2851-V/K9 |  CISCO2821-WAE/K9 |  CISCO2821-SEC/K9 |  CISCO2811-CCME/K9 |  C2811-4SHDSL/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Modular | Fixed |
| Built-in Security Features | Firewall, Intrusion Prevention, VPN | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, VPN | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | FCC, CE | FCC, CE | RoHS, FCC, CE | FCC / CE | FCC, CE |
| Connectivity Type | Wired / Ethernet | Wired | Wired | Wired | Wired |
| Device Type | Router | Router | Router | Router | Router |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | EHWIC | EHWIC / NIM | EHWIC | EHWIC | 2 WIC / 2 NM |
| Features | VPN, Voice, IPv6 Compatible, Firewall | VPN / VoIP / IPv6 Compatible / Firewall / WAN Optimization | VPN, Firewall, Intrusion Prevention, IPv6 Compatible | VPN / VoIP / IPv6 Compatible / Firewall | VPN, Integrated DSL, Modular Expansion, VOIP, Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 128 MB | 128 MB | 256 MB | 128 MB | 256 MB |
| Form Factor | Desktop | Rack-mount | Rack-mount, Desktop | Rack-mount | Rack-mount |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice, WAN Optimization | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization | Voice / Video / WAN Optimization | Voice, Data, Security |
| Interface Ports | RJ-45, SFP | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 128 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4, IPv6 | IP, IPX, Frame Relay, PPP | IPv4, IPv6 | IPv4 / IPv6 | IPv4, IPv6, MPLS, VPN |
| Power | 210 W | 150W | 65 W | 350W | 130 Watts |
| Power Source | AC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant | AC Power Supply | AC Power Supply |
| Product Name | CISCO2851-V/K9 | Cisco 2821 Integrated Services Router with WAE/K9 | Cisco 2821 Integrated Services Router Security (CISCO2821-SEC/K9) | Cisco 2811 Integrated Services Router - CCME/K9 | Cisco C2811-4SHDSL/K9 Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet, SSH, SNMP | CLI, SNMP, HTTP/HTTPS | SSH, Telnet, SNMP | SSH / Telnet | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / BGP | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Stacking Capability | No | No | No | No | No |
| Throughput Capacity | 75 Mbps | 50 Mbps | 0.075 Gbps | 0.075 Gbps | 28 Mbps |
| Use Case | Business | Business / Enterprise | Enterprise, Business | Enterprise | Enterprise, Business |
| VPN Support | IPSec VPN | IPSec / SSL VPN / GRE / DMVPN | IPSec / SSL VPN / N/A | IPSec / DMVPN | IPSec / SSL VPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | Modular WAN | 4 WAN |
| Wireless Support | No | Yes | No | No | No |
Compliance & Coverage
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
E
Ella Howard
4
Cisco 2851 Voice Bundle delivers high-performance UC. PVDM2-48 ensures stable voice services across medium branch offices.
N
Noah Bennett
5
Durable and reliable. Handles multiple endpoints efficiently while maintaining secure and predictable UC operations.
G
Grace Miller
4
Easy to deploy and manage. Provides seamless voice, UC, and network operations with minimal downtime.
L
Liam Scott
5
Reliable Cisco solution. Supports medium branches with high-quality voice, UC, and network communications.
C
Chloe Richardson
5
High-performing and robust. Ideal for offices needing consistent UC and voice performance.
Questions & Answers
What is the Cisco 2851 Voice Bundle (SKU: CISCO2851-V/K9)?
The Cisco 2851 Voice Bundle is an integrated router package that combines Cisco’s 2851 ISR platform with PVDM2-48 voice DSP resources, SP Services license, and 128F/512D licensing to deliver unified communications and advanced WAN services.
What functionality does the PVDM2-48 module provide?
The PVDM2-48 module supplies 48 DSP channels for transcoding, conferencing and media processing, enabling up to 48 simultaneous voice or fax sessions on the Cisco 2851.
What does the SP Services (SP Serv) license include?
The SP Services license unlocks service provider features such as advanced quality of service (QoS), MPLS-TE, and granular traffic policing to meet carrier-grade deployment requirements.
What are the 128F and 512D license designations?
The 128F license authorizes up to 128 Fast Ethernet sessions, while the 512D license permits up to 512 sessions of data forwarding, ensuring high throughput and scalability.
How many concurrent voice calls can the Cisco 2851 support?
With PVDM2-48 installed, the Cisco 2851 supports up to 48 concurrent G.711 calls or up to 64 G.729 calls with DSP resources optimized for compressed codecs.
Which Cisco IOS image is required for the Voice Bundle?
The Cisco 2851 Voice Bundle ships with the Universal IOS 15.x image, enabling on-demand feature activation for voice, data, security, and mobility services.
What WAN connectivity options are available on the Cisco 2851?
The 2851 ISR includes two integrated Gigabit Ethernet ports and supports WIC and HWIC modules for T1/E1, xDSL, and serial connectivity to address diverse network topologies.
How do I upgrade memory and storage on the 2851 Voice Bundle?
You can expand DRAM up to 2.5 GB and flash storage up to 8 GB using Cisco approved memory modules in the dedicated slots on the router’s chassis.
What are the physical dimensions and power requirements?
The Cisco 2851 measures 1.72 x 17.5 x 15.4 inches, weighs 15.4 lbs, and operates on AC input of 100–240 V at 50–60 Hz with a maximum power draw of 90 W.
Which service contracts cover the Cisco 2851 Voice Bundle?
Cisco SMARTnet or Cisco Solution Support contracts provide 24×7 hardware replacement, software updates, and direct access to Cisco TAC for the 2851 series.
Is the Cisco 2851 Voice Bundle compatible with Cisco Unified Communications Manager?
Yes, the 2851 integrates natively with Cisco Unified Communications Manager (CUCM) 8.x and later for SIP H.323 trunking, Survivable Remote Site Telephony, and local call processing.
How does the 2851 Voice Bundle support security?
The router includes hardware-accelerated Cisco IOS Firewall, Intrusion Prevention System (IPS) and VPN acceleration to secure voice, data, and management traffic.
What deployment scenarios suit the 2851 Voice Bundle?
Ideal for medium-sized branch offices, retail stores, and remote sites requiring integrated voice gateways, edge routing, and secure WAN acceleration in a single platform.
How can I verify warranty status for SKU CISCO2851-V/K9?
Use Cisco’s Warranty Checker portal with your device serial number to confirm the current coverage, support level, and contract expiration dates.
What is the typical lead time to order the 2851 Voice Bundle?
Standard stock availability is 2–3 business days; expedited shipping options are available through Cisco’s partner network for urgent deployments.
Are there software feature licenses sold separately?
Yes, additional licenses such as Unified CallConnector, SIP trunk optimization, and application visibility can be purchased as software feature licenses to expand functionality.