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C2821-VSEC-CUBE/K9
2821 VSEC Bundle w/PVDM2-32,FL-CUBE-100,AVS,128F/512D
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C2821-VSEC-CUBE/K9 is a modular enterprise router engineered with a robust architecture that delivers reliable integrated services including voice, video, and security, while offering a range of WAN and LAN interface options. It supports diverse power options with built‑in redundancy to ensure continuous operation, and its design incorporates modular capabilities that allow for expansion and flexibility in network management and security.
C2821-VSEC-CUBE/K9 features advanced VPN functionality such as IPSec and DMVPN to secure remote access and data integrity, and is optimized for high performance with quality of service (QoS) and firewall features to manage traffic and protect network assets. Ideal for branch office deployments and enterprise use cases, this router balances throughput and reliability with integrated session border control, fulfilling the demands of modern, secure connectivity.
C2821-VSEC-CUBE/K9 price is $4,084.00, a 54.6% saving from the Cisco list price of $8,995.00. C2821-VSEC-CUBE/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C2821-VSEC-CUBE/K9 for additional pricing. Browse the full Router Isr 2800 series or explore all Cisco products.
Scenario: A national retail chain operates 30 branch locations over an MPLS network, each requiring secure SIP trunking to a central voice platform. By deploying the C2821-VSEC-CUBE/K9-2821 VSEC Bundle w/PVDM2-32, FL-CUBE-100, AVS, 128F/512D at each site, the IT team leverages the integrated Cisco Unified Border Element (CUBE) for encrypted SIP/TLS sessions, 100 concurrent voice connections, and built-in firewall/VPN services. Outcome: Centralized SIP trunking slashes PRI costs by 60%, enforces end-to-end media encryption, and consolidates security functions—delivering enterprise-grade voice quality, regulatory compliance, and 40% reduction in branch network hardware.
Scenario: A mid-sized financial institution must secure data exchange between its headquarters and 15 satellite offices and enable 200 remote traders to access internal applications. The C2821-VSEC-CUBE/K9-2821 VSEC Bundle provides high-performance AES-256 VPN tunnels, integrated firewall zones, and DMVPN scalability. PVDM2-32 DSP resources ensure low-latency voice/fax over VPN when required. Outcome: Achieves FIPS-compliant encryption, 99.9% uptime for mission-critical trading platforms, and 50% faster VPN throughput—enhancing data confidentiality, reducing WAN costs, and streamlining remote workforce connectivity.
Scenario: A regional healthcare provider seeks to retire legacy TDM circuits and migrate 500 voice lines onto SIP trunks to support telemedicine and internal paging. By installing the C2821-VSEC-CUBE/K9-2821 VSEC Bundle, the IT team leverages FL-CUBE-100 licensing for up to 100 simultaneous SIP sessions, PVDM2-32 for call processing, and Cisco AVS for advanced video conferencing. Outcome: Delivers carrier-grade QoS with sub-50 ms latency for critical voice/video, cuts telecom spend by 45%, and meets HIPAA encryption mandates—empowering secure telehealth and on-call staff communications.
To get the detailed certification, please go to the Compliance Center.
| C2821-VSEC-CUBE/K9 |  CISCO2851 |  CISCO2811-ADSL2/K9 |  CISCO2821-SRST/K9 |  C2811-VSEC/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Modular | Modular | Fixed | Modular |
| Broadband | N/A | N/A | DSL | N/A | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / IPSec | Firewall | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention |
| Compliance Standards | FCC, CE, UL | FCC / CE | RoHS / FCC / CE | FCC, CE, RoHS | FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | 14.5 inches | 15.2 inches | 15.5 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | EHWIC / NIM | EHWIC | EHWIC | EHWIC | EHWIC / NIM |
| Features | VPN / Firewall / NAT / DMVPN / IPv6 Compatible | VPN / VoIP / IPv6 Compatible / Firewall / MPLS | VPN / Firewall / IPv6 Compatible | VPN / Voice / NAT / ACL / QoS | VPN, IPv6 Compatible, Firewall, MPLS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Desktop | Rack-mount | Rack-mount / Desktop | Desktop | Rack-mount |
| Height | N/A | 4.4 inches | 1.75 inches | 1.8 inches | N/A |
| High Availability Support | Supported | Supported | Not Supported | Supported | Supported |
| Integrated Services | Voice / Video / Security | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Security / Data | Voice, Video, WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45, Serial, Modular Slots |
| LAN Ports | 2 LAN Ports | Modular LAN | Modular LAN | 2 LAN Ports | Modular LAN |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 512 MB | 256 MB | 256 MB | 128 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 3+ Slots | 2 Slots | 3+ Slots |
| Network Protocols | IP, IPX, AppleTalk, Frame Relay | IPv4, IPv6 | IP / TCP / UDP / ICMP | IP, IGRP, OSPF, EIGRP, RIP, BGP | IP, IPX, AppleTalk |
| Power | 60 Watts | 65 Watt | 150W | 72W | 130 Watts |
| Power Source | AC Power Supply / Redundant | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply |
| Product Name | Cisco C2821-VSEC-CUBE/K9 | Cisco 2851 Integrated Services Router | CISCO2811-ADSL2/K9 | CISCO2821-SRST/K9 | Cisco 2811 Integrated Services Router (C2811-VSEC/K9) |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | SSH, Telnet, SNMP | Telnet, SSH, SNMP | Telnet / SSH | Telnet, SSH, SNMP, HTTP, HTTPS | Telnet, SSH, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / RIP / BGP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | Fast Ethernet | N/A | N/A | N/A | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.03 Gbps | 0.075 Gbps | 0.075 Gbps | 0.025 Gbps | 25 Mbps |
| Use Case | Enterprise / Branch Office | Enterprise | Business / Enterprise | Enterprise / Small Business | Enterprise |
| VPN Support | IPSec / SSL VPN / DMVPN | IPSec / DMVPN / N/A | IPSec | IPSec | IPSec |
| WAN Configuration | Dual WAN | Dual WAN | WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 1 WAN | 2 WAN | 2 WAN |
| Weight | N/A | 23.1 lbs | 14 lbs | 10 lbs | N/A |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | 17.3 inches | 17.3 inches | 17.7 inches | N/A |
| Wireless Support | No | No | No | No | No |
Strong CUBE performance for SIP trunking. Call routing is stable and security features integrate well with our voice infrastructure.
Handles voice traffic reliably under load. Configuration was manageable and overall performance has been consistent.
Well suited for enterprise voice security deployments. Call quality is clear and uptime has been excellent.
A solid Cisco solution for CUBE environments. Predictable performance and smooth integration with existing systems.
Dependable hardware for secure voice routing. Meets expectations for business critical voice workloads.
The bundle includes a Cisco 2821 Integrated Services Router, a PVDM2-32 DSP module, FL-CUBE-100 session license, Advanced Voice Services (AVS), 128 MB flash, and 512 MB DRAM.
Key features include secure voice and video, 32 DSP channels, 100 concurrent CUBE sessions, embedded AVS, modular interfaces, and up to 128 MB flash/512 MB RAM for advanced collaboration.
The PVDM2-32 supports up to 32 concurrent voice channels, enabling efficient transcoding, conferencing, and media processing for enterprise deployments.
The FL-CUBE-100 license enables up to 100 concurrent SIP sessions for Cisco Unified Border Element (CUBE) voice routing and interconnection.
Advanced Voice Services (AVS) delivers features such as security, quality enforcement, call recording, and toll fraud prevention for enterprise voice networks.
This bundle ships with 128 MB of onboard flash and 512 MB of DRAM, supporting robust IOS-based routing and voice applications.
By integrating CUBE, PVDM2 DSP resources, and AVS, the router securely interconnects SIP trunks, performs media anchoring, and ensures high-quality voice/video services.
Ideal for small-to-medium branch offices, retail sites, and remote locations requiring secure voice/SIP trunking, local survivability, and integrated security.
Yes. It interoperates seamlessly with Cisco Unified Communications Manager, Unity Connection, and third-party SIP devices over secure trunking.
Integrated security includes zone-based firewall, IPsec VPN, TLS/SRTP for voice, control-plane policing, and AVS-powered call-authentication mechanisms.
You can scale session capacity by adding higher-tier CUBE licenses (e.g., FL-CUBE-500) and additional PVDM2 modules, subject to hardware limits.
The Cisco 2821 is a rack-mountable 1U router consuming up to 100 W AC. It supports dual redundant power supplies and standard Cisco power modules.
It supports Cisco IOS High Availability features, VRRP, N+1 power redundancy, and media-session survivability for uninterrupted voice connectivity.
Cisco offers a one-year limited hardware warranty and optional SMARTnet support for 24×7 access to software updates, hardware replacements, and technical assistance.
Use IOS CLI to enable voice service voip, define sip-ua settings, configure dial-peers for SIP trunks, and apply FL-CUBE session licenses for call routing.
The bundle is available through Cisco authorized resellers, system integrators, and Cisco’s online commerce portal with certified pricing and delivery options.