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C2821-25UC/K9
- Description:
- 2821 w/ PVDM2-32,AIM-CUE,25 CME/CUE/Ph lic,SP Serv,128F/512D
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- 818250598303
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$10,595.00
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C2821-25UC/K9
2821 w/ PVDM2-32,AIM-CUE,25 CME/CUE/Ph lic,SP Serv...
$10,595.00
$4,811.00
50 in Global Warehouse
$4,811.00
55% off
TRUSTED, TRIED, PROVEN
C2821-25UC/K9 Overview
C2821-25UC/K9 is an integrated services router engineered for enterprise environments where robust performance and secure connectivity are critical. Built on a fixed architecture with an AC power supply, it delivers reliable WAN and LAN connectivity through integrated 10/100 Ethernet interfaces while providing comprehensive services such as voice and VPN support. Its design accommodates modular expansion via EHWIC slots, ensuring flexibility and future growth without sacrificing performance or redundancy.
Optimized for demanding networks, the C2821-25UC/K9 offers a throughput capacity of up to 25 Mbps and advanced VPN features—including IPSec, SSL VPN, and DMVPN—for secure communication across distributed locations. Supporting industry-standard routing protocols like OSPF, EIGRP, BGP, and RIP, this router is ideally suited for enterprise and business use cases that require integrated voice services, scalable performance, and high availability.
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C2821-25UC/K9 Specifications
| Product Type | Enterprise Router |
| VPN Support | IPSec / SSL VPN / DMVPN / N/A |
| Power Source | AC Power Supply |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing |
| Broadband | N/A |
| Architecture | Fixed |
| WAN Configuration | WAN |
| WAN Ports | 2 WAN |
| LAN Ports | 4 LAN Ports |
| Ethernet Technology | 10/100 |
| Wi-Fi Standard | N/A |
| Connectivity Type | Wired |
| Network Protocols | IPv4 / IPv6 / MPLS |
| Remote Management | Telnet / SSH / SNMP |
| Compliance Standards | FCC / CE |
| Wireless Support | No |
| Speed/Capacity | 10/100 |
| Firewall Features | Yes |
| Features | VPN / VoIP / IPv6 Compatible / Firewall |
| Use Case | Enterprise |
| Management | Managed |
| Form Factor | Rack-mount |
| Integrated Services | Voice |
| High Availability Support | Supported |
| Safety | N/A |
| EMC | N/A |
| Telecom | N/A |
| Throughput Capacity | 25 Mbps |
| QoS Features | Supported |
| Built-in Security Features | Firewall / Intrusion Prevention |
| 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 |
| Power | 85 Watt |
| Device Type | Router |
| Product Name | Cisco C2821-25UC/K9 Integrated Services Router |
| Height | N/A |
| Width | N/A |
| Depth | N/A |
| Weight | N/A |
C2821-25UC/K9 Use Case
Branch Office IP Telephony and Centralized Voicemail
In a multi-site professional services firm, the Cisco C2821-25UC/K9-2821 with PVDM2-32, AIM-CUE, 25-seat CME/CUE/Ph licensing, SP Services and 128 MB flash/512 MB DRAM delivers on-premises IP telephony and Unity Express voicemail for up to 25 extensions per branch. This all-in-one router consolidates WAN routing and voice services, reducing hardware footprint by 60%, cutting OPEX by 30%, and ensuring HD voice quality with integrated QoS.
Service Provider Edge Voice Aggregation and QoS Enforcement
A regional service provider deploys the C2821-25UC/K9-2821 as a multiservice edge router, leveraging PVDM2-32 DSP modules, SP Services and unified CME/CUE/Ph licenses to terminate and manage SMB voice traffic. The integrated platform enforces granular QoS policies, ensures 99.9% SLA uptime, and optimizes bandwidth usage by 50%, while streamlining multi-tenant voice provisioning and monitoring.
Contact Center Micro-Branch Integration with Business Continuity
A mid-market contact center uses the Cisco 2821-25UC/K9-2821 with AIM-CUE, 25-seat CME/CUE/Ph licensing, and PVDM2-32 to host local IVR, voicemail and PSTN failover at remote sites. With 128 MB flash/512 MB DRAM and built-in SP Services, each micro-branch maintains uninterrupted voice operations during WAN outages, improves first-call resolution by 15%, and simplifies management through centralized configurations.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| 5G Support | No | No | No | No | - |
| Architecture | Fixed | Modular | Fixed | Modular | - |
| Broadband | N/A | N/A | N/A | N/A | - |
| Built-in Security Features | Firewall, Intrusion Prevention, VPN | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention | - |
| Compliance Standards | RoHS, FCC, CE | FCC, CE, UL | FCC / CE | FCC / CE | - |
| Connectivity Type | Wired | Wired / Wireless / Ethernet | Wired | Wired | - |
| Depth | 14.0 inches | 11.3 inches | N/A | N/A | - |
| Device Type | Router | Router | Router | Router | - |
| EMC | N/A | N/A | N/A | N/A | - |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | - |
| Expansion Slots | EHWIC | EHWIC | EHWIC | EHWIC / NIM | - |
| Features | VPN, Firewall, Intrusion Prevention, IPv6 Compatible | Voice, VPN, IPv6 Compatible, Firewall | VPN / VoIP / IPv6 Compatible / Firewall | VPN / Firewall / Integrated Security / IPv6 Compatible | - |
| Firewall Features | Yes | Yes | Yes | Yes | - |
| Flash Memory | 256 MB | 256 MB | 128 MB | 128 MB | - |
| Form Factor | Rack-mount, Desktop | Rack-mount | Rack-mount | Rack-mount | - |
| Height | 3.0 inches | 1.73 inches | N/A | N/A | - |
| High Availability Support | Supported | Not Supported | Supported | Supported | - |
| Integrated Services | Voice, Video, WAN Optimization | Voice, Data, Security, Wireless | Voice | Voice / Video / Data | - |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 | - |
| LAN Ports | N/A | 4 LAN Ports | 4 LAN Ports | 2 LAN Ports | - |
| Management | Managed | Managed | Managed | Managed | - |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | - |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | - |
| Network Protocols | IPv4, IPv6 | IPv4, IPv6 | IPv4 / IPv6 / MPLS | IPv4 / IPv6 | - |
| Power | 65 W | 70W | 85 Watt | 75 Watt | - |
| Power Source | AC Power Supply / Redundant | AC Power Supply | AC Power Supply | AC Power Supply / Redundant | - |
| Product Name | Cisco 2821 Integrated Services Router Security (CISCO2821-SEC/K9) | Cisco 2851 Integrated Services Router - Wireless Access Edition | Cisco C2821-25UC/K9 Integrated Services Router | Cisco C2811-VSEC-CUBE/K9 Integrated Services Router | - |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | - |
| QoS Features | Supported | Supported | Supported | Supported | - |
| Remote Management | SSH, Telnet, SNMP | SNMP, Telnet, SSH | Telnet / SSH / SNMP | Telnet / SSH / SNMP | - |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / EIGRP / BGP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | - |
| Safety | N/A | N/A | N/A | N/A | - |
| Speed/Capacity | N/A | 10/100 | 10/100 | Fast Ethernet | - |
| Stacking Capability | No | No | No | No | - |
| Telecom | N/A | N/A | N/A | N/A | - |
| Throughput Capacity | 0.075 Gbps | 25 Mbps | 25 Mbps | 30 Mbps | - |
| Use Case | Enterprise, Business | Enterprise | Enterprise | Enterprise / Branch Office | - |
| VPN Support | IPSec / SSL VPN / N/A | IPSec / GRE / DMVPN | IPSec / SSL VPN / DMVPN / N/A | IPSec / GRE / DMVPN / N/A | - |
| WAN Configuration | Dual WAN | Dual WAN | WAN | Dual WAN | - |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | - |
| Weight | 12 lbs | 15.6 lbs | N/A | N/A | - |
| Wi-Fi Standard | N/A | WiFi 4 | N/A | N/A | - |
| Width | 17.0 inches | 17.0 inches | N/A | N/A | - |
| Wireless Support | No | Yes | No | No | - |
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Questions & Answers
Q
What is the Cisco 2821 router (SKU C2821-25UC/K9)?
A
The Cisco 2821 (SKU C2821-25UC/K9) is a second-generation integrated services router with PVDM2-32 DSPs, AIM-CUE voicemail, 25 CME/CUE phone licenses, SP services, 128MB flash and 512MB DRAM, designed for secure voice and data convergence in small to medium enterprises.
Q
What does PVDM2-32 mean on the Cisco 2821 router?
A
PVDM2-32 refers to the Packet Voice Digital Signal Processor Module 2 with 32 DSP channels, enabling up to 32 simultaneous voice calls, conferencing, transcoding and media services on the Cisco 2821 platform.
Q
What is AIM-CUE in the C2821-25UC/K9 package?
A
AIM-CUE stands for Application Integration Module with Cisco Unity Express, providing integrated voicemail, auto attendant and messaging services directly on the Cisco 2821 router without external servers.
Q
How many CME/CUE/Phone licenses are included?
A
The C2821-25UC/K9 includes 25 Cisco Unified Communications Manager Express (CME), Cisco Unity Express (CUE) and phone licenses, supporting up to 25 IP endpoints and mailboxes out of the box.
Q
What SP services are supported on the Cisco 2821-25UC/K9?
A
The Cisco 2821 supports service provider (SP) features including MPLS VPN, Quality of Service (QoS), voice peering, and carrier-class security services for managed voice and data networks.
Q
What memory and storage does the Cisco 2821-25UC/K9 offer?
A
This model ships with 128MB of flash memory for IOS images and 512MB of DRAM for routing and application processes, expandable via Compact Flash slots for additional storage needs.
Q
What performance can I expect from the Cisco 2821 router?
A
The Cisco 2821 delivers up to 25Mbps of throughput, supports up to 50 simultaneous T1/E1 voice calls, and handles unified communications and security services concurrently for branch deployments.
Q
Is the Cisco 2821-25UC/K9 suitable for small businesses?
A
Yes. Its integrated voice, data, security and application modules make the Cisco 2821 ideal for small to medium-sized businesses seeking a single platform for IP telephony and branch connectivity.
Q
How do I upgrade the Cisco 2821’s memory?
A
You can upgrade DRAM and flash via the two on-board DIMM slots and Compact Flash slot respectively, supporting up to 256MB DRAM and 2GB Compact Flash for enhanced performance and storage.
Q
What power options are available for the 2821 router?
A
The Cisco 2821 includes an internal AC power supply and offers an optional redundant power supply (RPS) module for higher availability in critical deployments.
Q
Does the Cisco 2821-25UC/K9 support QoS?
A
Yes. The router features advanced Quality of Service capabilities, including classification, policing, shaping, priority queuing and Low Latency Queuing (LLQ) to prioritize voice and video traffic.
Q
What are the dimensions and weight of the Cisco 2821?
A
The Cisco 2821 measures 1.75 x 17.5 x 15.75 inches (4.4 x 44.5 x 40 cm) and weighs approximately 11.5 lbs (5.2 kg), fitting standard 19-inch rack mounts with a 1U chassis profile.
Q
Can I deploy the Cisco 2821 in a cloud-managed environment?
A
Yes. With Cisco IOS Software and optional Cisco Prime or DNA Center integration, you can manage, monitor and configure the Cisco 2821 centrally in hybrid and cloud-managed networks.
Q
What warranties and support options are available?
A
Cisco offers a 90-day limited hardware warranty and 90-day software updates. Enhanced SMARTnet support contracts are available for 24/7 technical assistance, software updates and hardware replacement.
Q
Is the Cisco 2821 end-of-life (EOL)?
A
The Cisco 2821 was announced end-of-sale and end-of-life; however, Cisco continues to provide extended software maintenance and support options through SMARTnet for deployed units.
Q
How much does the Cisco 2821-25UC/K9 cost?
A
Pricing varies by region and reseller. Typical street price ranges from $2,500 to $4,000 USD, excluding taxes and services. Contact an authorized Cisco partner for a precise quote.
