Cisco ISR4321-V/K9 4321 Integrated Services Router with UC License &pvdm4-32 ISR4321V/K9

Description:

The Cisco ISR4321-V/K9 Integrated Services Router is used in enterprise branch networking systems to provide secure WAN routing with integrated unified communications support. Commonly installed in corporate branch offices, call center infrastructures, and distributed enterprise networks requiring voice, data, and secure connectivity on a single routing platform. Maintenance teams, network administrators, and system integrators use this router for branch network deployment, infrastructure upgrades, unified communications integration, or replacement of legacy routing equipment.  

Applications:

The Cisco ISR4321-V/K9 Router is deployed in enterprise branch environments to support integrated voice, data, and secure WAN connectivity through a single routing platform. It is commonly used in branch offices, call centers, retail networks, and distributed corporate locations where unified communications services such as IP telephony and voice gateways are required. Network administrators and system integrators implement this router to enable secure VPN connectivity, voice service integration using PVDM modules, and centralized network management across enterprise WAN infrastructures.

Technical Specifications:

• Manufacturer Part Number (MPN): ISR4321-V/K9
• Brand: Cisco
• Product Type: Integrated Services Router
• Series: Cisco ISR 4000 Series
• WAN Interfaces: 2 × Integrated Gigabit Ethernet WAN ports
• LAN Interfaces: 2 × Gigabit Ethernet ports
• Throughput: Up to 100 Mbps default performance (upgradeable with licenses)
• Voice Support: Unified Communications license included
• DSP Module: PVDM4-32 Digital Signal Processor Module
• Memory: 4 GB DRAM (expandable)
• Flash Storage: 4 GB internal flash
• Expansion Slots: 2 × NIM (Network Interface Module) slots
• USB Ports: 1 × USB 2.0 port
• Management Interfaces: Console port and auxiliary port
• Security Features: Integrated firewall, IPSec VPN, and encryption acceleration
• Form Factor: Rack-mountable enterprise router

Common Replacements:

• Cisco ISR4331-V/K9 Integrated Services Router
• Cisco ISR4321/K9 Integrated Services Router
• Cisco C1111-8P Integrated Services Router