ISR4331-VSEC/K9 Cisco ISR4331 Integrated Services Router Voice Security Bundle
Cisco ISR4331-VSEC/K9 ISR 4331 Integrated Services Router Voice Security Bundle
Enterprise Cisco ISR 4331 Router with Voice and Security Bundle for Secure WAN and Unified Communications
The Cisco ISR4331-VSEC/K9 Integrated Services Router is a versatile enterprise networking solution from the Cisco 4000 Series ISR, combining advanced routing, unified communications, and enterprise-grade security in a single platform. Designed for branch office and WAN edge deployments, it delivers secure, scalable, and high-performance connectivity for modern business environments.
Bundled with both Voice and Security licenses, the ISR4331-VSEC/K9 includes PVDM4-32 DSP resources and CUBE-10 licensing, enabling integrated voice, video, and collaboration services. This makes it ideal for organizations requiring VoIP, SIP trunking, and unified communications alongside secure network connectivity.
The router supports throughput from 100 Mbps up to 300 Mbps, delivering reliable performance for data, voice, and video traffic. It features Gigabit Ethernet RJ-45 and SFP combo interfaces, along with NIM and SM-X expansion slots, providing flexible connectivity and modular scalability.
Built on Cisco IOS XE, the ISR4331-VSEC/K9 supports advanced networking and security capabilities, including IPsec and SSL VPN, Zone-Based Firewall (ZBFW), encryption, and threat protection. It also supports advanced routing protocols such as BGP, OSPF, EIGRP, and IS-IS, ensuring seamless integration into enterprise and service provider networks.
With support for application optimization, QoS, and centralized management, the router enables efficient traffic handling and improved user experience across distributed environments.
Ideal for enterprise branch offices, secure WAN connectivity, unified communications deployments, and managed service environments, the Cisco ISR4331-VSEC/K9 provides a scalable, secure, and feature-rich solution for converged business networking.
Product Specifications – Cisco ISR4331-VSEC/K9 4000 Series Integrated Services Router
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| Specification | Details |
|---|---|
| Product Name | Cisco ISR4331-VSEC/K9 Integrated Services Router |
| Manufacturer | Cisco Systems |
| Part Number | ISR4331-VSEC/K9 |
| Product Series | Cisco 4000 Series ISR |
| Product Type | Integrated Services Router |
| Bundle Included | Voice + Security Bundle (UC & SEC License, PVDM4-32, CUBE-10) |
| Throughput | 100 Mbps (base) up to 300 Mbps |
| Interfaces | 3 × Gigabit Ethernet ports (2 RJ-45 + 2 SFP combo) |
| WAN/LAN Ports | Configurable GE interfaces |
| NIM Slots | 2 × Network Interface Module (NIM) slots |
| Service Module Slot | 1 × SM-X slot |
| ISC Slot | 1 × Internal Services Card slot |
| Memory | 4 GB DRAM (default), expandable up to 16 GB |
| Flash Memory | 4 GB flash (default), expandable up to 16 GB |
| USB Ports | 2 × USB 3.0 |
| Console Ports | RJ-45 and Mini-USB console |
| VPN Support | Yes (IPsec, SSL VPN) |
| Security Features | Firewall, encryption, threat protection |
| Firewall | Zone-Based Firewall (ZBFW) |
| Encryption | AES, 3DES |
| Voice Support | DSP modules, CUBE support |
| Voice Features | Unified communications, SIP trunking, VoIP |
| DSP Module Included | PVDM4-32 |
| CUBE License | CUBE-10 included |
| Routing Protocols | OSPF, EIGRP, BGP, IS-IS |
| QoS Support | Advanced QoS and traffic prioritization |
| WAN Optimization | Application optimization support |
| Operating System | Cisco IOS XE |
| Management | CLI, Web UI, SNMP, NETCONF/YANG |
| Automation Support | API-based programmability |
| Power Supply | Internal AC power supply |
| PoE Support | Supported |
| Form Factor | 1 Rack Unit (1RU), rack-mountable |
| Cooling | Internal fan system |
| Operating Temperature | 0°C to 40°C |
| Deployment Type | Enterprise branch, WAN edge |
| Application | Unified communications, secure routing |
| Scalability | Modular expansion with NIM and SM-X slots |
| Reliability | Enterprise-grade continuous operation |
| Condition | New / Cisco Certified |
| Use Cases | Branch networking, VPN, UC deployments, MSP environments |
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FAQs
Q1. What does VSEC mean in this model?
It indicates a bundle that includes both Voice (UC) and Security licenses.
Q2. Does this router support voice services?
Yes, it includes DSP support (PVDM) and CUBE for voice and unified communications.
Q3. What is the throughput capacity?
It supports 100 Mbps to 300 Mbps aggregate throughput.
Q4. Is this suitable for enterprise branch offices?
Yes, it is designed for branch deployments requiring voice, security, and WAN services.
Q5. Can this router be expanded?
Yes, it includes NIM and SM-X slots for modular expansion
