• Cisco ISR4431-VSEC/K9 black router with silver accents and vents
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Cisco

Cisco ISR4431-VSEC/K9 | Enterprise branch router | 4x1GbE, 3xNIM | SD-WAN ready, LTE-ready (modular) | UC + Security bundle: PVDM4-64, CUBE-25 | IOS XE

ISR4431-VSEC/K9

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Description

A secure, voice-enabled branch router combining Unified Communications and Security feature sets. Includes PVDM4-64 DSP resources and a CUBE-25 session license for SIP trunking, plus UC capabilities such as CME/SRST. Three NIM slots enable flexible WAN, voice, or LTE expansion, while IOS XE provides SD-WAN support and advanced services. Designed for consolidated routing, voice, and security at the branch.

Features

- All-in-one routing, security, and UC functionality for branches
- CUBE-25 included for SIP trunking integration
- Hardware DSP for conferencing and transcoding
- SD-WAN capable for application-aware WAN
- Modular growth with 3 NIM slots

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Datasheet

Manual

Technical Specifications

- Fixed interfaces: 4 x 10/100/1000 Mbps Ethernet
- Expansion: 3 x NIM slots (WAN/voice/LTE modules)
- PVDM4: 64-channel DSP module included (PVDM4-64)
- Licensing: UC + Security enabled
- CUBE: 25-session license included (CUBE-25)
- SD-WAN: Supported on IOS XE
- LTE: Supported via modular NIM (not included)
- Operating system: IOS XE
- Form factor: 1RU rack-mountable

FAQs

Q: What is included in the VSEC bundle?
A: UC and Security feature sets, a PVDM4-64 DSP module, and a CUBE-25 session license for SIP trunking.

Q: Can I scale beyond 25 CUBE sessions?
A: Yes. Additional CUBE session licenses can be added to increase capacity.

Q: Does this bundle include LTE connectivity?
A: No. LTE is available via optional LTE NIM modules.

Q: Is SD-WAN functionality available?
A: Yes. The platform supports SD-WAN on IOS XE; appropriate DNA subscriptions and configuration are required.

Datasheet

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Manual

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