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Cisco ISR4321-V/K9 2-Port Gigabit Voice CME Router
CISCO
Product Specification
| Brand | CISCO |
| SKU | RTR-CISCO-ISR4321-V |
| Product Type | Router |
| Series | Cisco ISR 4321 Series Router |
| Ethernet Ports | 2x Gigabit Ethernet Ports |
| Voice Support | Integrated Voice CME Support |
| VoIP Support | Supports VoIP and SIP Services |
| Operating System | Cisco IOS XE Operating System |
| Deployment | Rack or Desktop Deployment |
| Interface | Modular Interface Slots |
| Security | Secure VPN and Routing Features |
About This Product
Overview
The Cisco ISR4321-V/K9 is an enterprise branch router built for organizations that need dependable connectivity, voice integration, and secure network routing in a compact platform. As part of the Cisco ISR 4321 Series, it is designed to support branch office environments where routing, communications, and network access must work together efficiently. The inclusion of integrated Voice CME support makes it a practical choice for deployments that require voice services alongside standard data networking, while support for VoIP and SIP services helps align the router with modern business communication requirements. Running Cisco IOS XE, this router benefits from a widely used enterprise operating system that is familiar in many IT environments and suited to managed network deployments. Its rack or desktop deployment options also provide flexibility for different installation scenarios, whether the device is being added to an equipment rack or placed in a smaller office setup.
Performance & Scalability
Built for branch networking, the ISR4321-V/K9 offers a balanced feature set that supports secure routing and voice traffic in a single platform. The presence of two Gigabit Ethernet ports provides high-speed wired connectivity for network integration, while secure VPN and routing features help support remote access and protected communications. Modular interface slots add deployment flexibility, allowing the router to adapt to changing network requirements as the environment evolves. This makes the unit suitable for organizations that want a router capable of handling core branch functions without unnecessary complexity. Cisco IOS XE further supports operational consistency and network manageability, which is important in business environments where reliability and control are key considerations. For IT teams looking to standardize branch connectivity and voice services, this router offers a practical foundation that can fit into a broader enterprise network strategy.
Storage Flexibility
While this product is primarily a router rather than a storage device, its modular design and enterprise-focused architecture contribute to deployment flexibility in network infrastructure. The ability to install the unit in either rack or desktop configurations makes it easier to fit into different physical environments, from structured network closets to smaller office spaces. Modular interface slots also help extend the usefulness of the platform by supporting different connectivity needs as network designs change. For businesses that value adaptable hardware, this flexibility can be an important advantage when planning branch office infrastructure.
Why Choose This Product?
The Cisco ISR4321-V/K9 is a strong fit for organizations that need a compact enterprise router with voice support, secure connectivity, and Cisco platform familiarity. It combines routing, VPN capability, and VoIP/SIP support in one device, helping simplify branch office network design. The Cisco ISR 4321 Series is well suited to business environments that require dependable performance and integration with existing Cisco-based infrastructure. With flexible deployment options and modular interface slots, this router can support a range of installation and networking needs while remaining focused on essential branch connectivity and communication functions.
Why Buy a Refurbished Products?
Refurbished enterprise servers offer enterprise-grade performance at a fraction of the new price.
Up to 70% Cost Savings
Refurbished R650xs units deliver identical hardware capability to new, at significantly lower upfront cost — freeing budget for CPUs, RAM, and storage.
Fully Tested & Verified
Every unit undergoes comprehensive hardware diagnostics before dispatch. POST tests, burn-in, memory checks, and power supply verification are standard.
Immediate Availability
Unlike new enterprise servers with lead times of weeks or months, refurbished stock is ready to ship within 24 hours of ordering.
Same Performance
The hardware inside the R650xs performs identically whether purchased new or refurbished. The 3rd Gen Xeon platform, PCIe Gen4, and iDRAC9 are unchanged.
Frequently Asked Questions
Does the Cisco ISR4321-V/K9 support voice services?
Yes, it includes integrated Voice CME support and supports VoIP and SIP services.
What type of deployment does this router support?
This router supports both rack and desktop deployment for flexible installation.
How many Ethernet ports are included?
The router includes 2x Gigabit Ethernet ports.
What operating system does it use?
It runs Cisco IOS XE Operating System.
Is this router suitable for branch office networking?
Yes, it is designed as an enterprise branch router with secure routing and VPN features.