ISR4321-V/K9 Cisco ISR4321 Router with UC Bundle
Cisco ISR4321-V/K9 Integrated Services Router with Unified Communications Bundle
Enterprise Cisco ISR4321 Router with UC Bundle for Secure Branch Networking, Voice, Video, and WAN Connectivity
The Cisco ISR4321-V/K9 Integrated Services Router is a high-performance Cisco 4000 Series ISR designed for secure enterprise branch networking and unified communications. Equipped with 2 Gigabit Ethernet interfaces and a dedicated Gigabit Ethernet management port, it combines routing, security, voice, video, and WAN services in a compact platform. Powered by Cisco IOS XE, the router supports modular expansion through compatible Network Interface Modules (NIMs) and service modules, making it suitable for evolving branch infrastructure.
Designed with a Unified Communications bundle, the Cisco ISR4321-V/K9 supports Cisco IP telephony, SIP, voice gateway, video, and collaboration services alongside secure WAN connectivity. Advanced networking and security capabilities include IPsec VPN, DMVPN, SSL VPN, Zone-Based Firewall, hardware-assisted encryption, NAT, MPLS, IPv4/IPv6, BGP, OSPF, EIGRP, and Quality of Service (QoS), with specific features dependent on software and licensing. These capabilities help organizations securely connect branch offices, remote users, cloud applications, and business-critical services.
The Cisco ISR4321-V/K9 provides a scalable foundation for enterprise branch networking, unified communications, IP telephony, secure WAN connectivity, remote office deployments, voice and video services, and cloud-connected infrastructure. Its modular architecture, Cisco IOS XE platform, advanced security, and integrated collaboration capabilities make it an effective solution for organizations modernizing branch networks while supporting reliable voice, data, and application connectivity.
Product Specifications – Cisco ISR4321-V/K9 4321 Integrated Services Router with Unified Communications Bundle
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| Specification | Details |
|---|---|
| Product Name | Cisco ISR4321-V/K9 4321 Integrated Services Router with Unified Communications Bundle |
| Manufacturer | Cisco Systems |
| Part Number | ISR4321-V/K9 |
| Product Series | Cisco 4000 Series Integrated Services Routers |
| Product Model | Cisco ISR 4321 |
| Product Type | Integrated Services Router with Unified Communications Bundle |
| Architecture | Cisco 4000 Series Modular ISR Architecture |
| Operating System | Cisco IOS XE |
| Network Interfaces | 2 × Gigabit Ethernet WAN/LAN Interfaces |
| Management Interface | 1 × Gigabit Ethernet Management Interface |
| Network Interface Type | RJ-45 Gigabit Ethernet |
| Expansion | Modular Network Interface Module (NIM) Support |
| Service Module Support | Enhanced Service Module (SM-X) Support |
| Voice Support | Cisco Unified Communications |
| Unified Communications | Supported with UC Bundle |
| Voice Gateway | Supported |
| SIP | Supported |
| IP Telephony | Supported |
| Video Services | Supported |
| VPN Support | IPsec VPN, DMVPN and SSL VPN |
| Firewall | Cisco IOS XE Zone-Based Firewall |
| Encryption | Hardware-Accelerated Encryption |
| Routing | Static Routing and Dynamic Routing Protocols |
| Routing Protocols | BGP, OSPF, EIGRP, RIP and IS-IS (License/Software Dependent) |
| IPv4 | Supported |
| IPv6 | Supported |
| MPLS | Supported |
| NAT | Supported |
| Quality of Service (QoS) | Advanced QoS |
| WAN Optimization | Supported with Compatible Services |
| High Availability | Supported |
| Network Management | Cisco IOS XE CLI, SNMP and Cisco Network Management Platforms |
| Programmability | Cisco IOS XE Programmability and Automation |
| Security Features | VPN, Firewall, ACLs, Secure Management and Hardware Encryption |
| Power Supply | Internal AC Power Supply |
| Form Factor | Compact Rack-Mountable Platform |
| Deployment | Enterprise Branch, WAN Edge and Unified Communications |
| Application | Secure Routing, Voice, Video, VPN and Cloud Connectivity |
| Compatibility | Cisco 4000 Series ISR Platform |
| Condition | Refurbished |
| Use Cases | Enterprise Branch Networking, IP Telephony, Unified Communications, Secure WAN Connectivity, Remote Office Networking, Voice and Video Services |
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FAQs
Q1. What is the Cisco ISR4321-V/K9?
The Cisco ISR4321-V/K9 is a Cisco 4000 Series Integrated Services Router with a Unified Communications Bundle that delivers secure routing, voice, video, VPN, and WAN services for enterprise branch offices.
Q2. Who should buy the Cisco ISR4321-V/K9?
The router is ideal for businesses, branch offices, educational institutions, healthcare organizations, and government agencies requiring secure networking with integrated voice and Unified Communications capabilities.
Q3. Is a refurbished Cisco ISR4321-V/K9 worth buying?
Yes. A professionally refurbished Cisco ISR4321-V/K9 offers enterprise-grade routing, security, and Unified Communications performance at a lower cost, making it an excellent investment for network upgrades and branch expansion.
Q4. Does the Cisco ISR4321-V/K9 support Unified Communications and voice services?
Yes. The UC Bundle enables Cisco Unified Communications features for voice and video deployments, while additional licenses may be required for specific Cisco Unified Border Element (CUBE) session capacities.
Q5. What networking features does the Cisco ISR4321-V/K9 support?
The router supports advanced enterprise networking technologies including QoS, MPLS, NAT, IPv4/IPv6 routing, VPN connectivity, security services, and Cisco IOS XE-based network automation.
