Cisco ISR4331-V/K9 — Unified Communications Voice Bundle Router
Save up to 80% over new with this professionally refurbished Cisco ISR 4331 Voice Bundle router, backed by Reef Telecom's industry-leading 10-year warranty. The ISR4331-V/K9 delivers enterprise-grade VoIP and WAN services for small to mid-size branch offices — ideal for CME, SRST, and CUBE deployments.
Key Specifications
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Part Number: ISR4331-V/K9
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Throughput: 100 Mbps – 300 Mbps aggregate (pay-as-you-grow licensing)
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WAN/LAN Ports: 3 onboard Gigabit Ethernet (2 RJ-45 + 1 GE/SFP combo)
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SFP Ports: 2
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Expansion: 2 NIM slots, 1 ISC slot (PVDM4-32 included), 1 SM-X slot
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Memory: 4 GB DDR3 ECC DRAM / 4 GB Flash (expandable to 16 GB each)
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Voice Bundle Includes: PVDM4-32 DSP, IP Base + UC License (CME, SRST, CUBE)
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Power: Internal AC (100–240V auto-ranging), up to 250W; PoE option up to 530W
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Form Factor: 1U rack-mountable, wall-mountable
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OS: Cisco IOS XE with multi-core CPU architecture
Advanced Capabilities
- Cisco SD-WAN / IWAN ready for intelligent path selection
- IPsec, SSL VPN, and FlexVPN encryption support
- Application Visibility and Control (AVC) with NetFlow/IPFIX
- VPN, VLAN, QoS, OSPF, BGP, EIGRP routing protocols
- SM-X slot supports UCS-E server blade for virtualized branch services
Why Buy from Reef Telecom?
- ✅ 10-Year Warranty — the longest in the industry
- ✅ Free Shipping on orders over $300
- ✅ Fully tested and inspected refurbished equipment
- ✅ Environmentally responsible IT lifecycle management
The Cisco ISR4331-V/K9 is the ideal branch router for enterprises deploying unified communications, VoIP, and secure WAN connectivity. Compatible with Cisco NIM, SM-X, and PVDM4 modules for maximum flexibility.
