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Cisco

Cisco C881-CUBE-K9 | 1x FE WAN + 4x FE LAN, CUBE voice SBC, IPsec/Firewall, SD-WAN: No, LTE: No, License: CUBE/SEC

SKU:C881-CUBE-K9

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Description

Compact branch router with integrated CUBE for SIP trunking and demarcation. Provides firewall, NAT, QoS, and IPsec VPN for small sites, plus a 4-port 10/100 LAN switch and a 10/100 Ethernet WAN. Ideal as a voice border element for small UC deployments while securing and routing branch traffic.

Features

- CUBE-enabled SIP trunk demarcation for small UC deployments
- Integrated firewall and IPsec VPN for secure branch connectivity
- 4-port Fast Ethernet LAN switch simplifies small-office wiring
- Comprehensive QoS to prioritize voice over data
- USB and console access for easy provisioning and troubleshooting
- IPv6-capable software feature set (license dependent)

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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FAQs

Technical Specifications

FAQs

Q: Does this model include CUBE functionality?
A: Yes. This variant includes integrated CUBE to terminate or interconnect SIP trunks at branch scale.

Q: Is SD-WAN supported on this router?
A: No. This platform does not support modern SD-WAN fabric management.

Q: Is LTE or Wi‑Fi built in?
A: No integrated LTE or Wi‑Fi. An external modem can be used on the Ethernet WAN, and a USB modem may be supported depending on IOS.

Q: Are the Ethernet ports Gigabit?
A: No. All integrated ports are 10/100 Fast Ethernet.

Q: Can it power PoE devices?
A: No. The integrated LAN switch does not provide PoE.

Technical Specifications

- WAN: 1x 10/100 Fast Ethernet (RJ-45)
- LAN: 4x 10/100 Fast Ethernet switch ports (RJ-45)
- Voice: Integrated CUBE for SIP trunking / SBC (branch scale)
- Security: Stateful firewall, NAT/PAT, ACLs, zone-based policies
- VPN: IPsec site-to-site and remote access (license dependent)
- SD-WAN: Not supported (legacy ISR platform)
- LTE/5G: Not integrated (supports external modem via USB where applicable)
- QoS: Traffic shaping and prioritization for voice/data
- Management: CLI (console), SSH, SNMP; USB 2.0 port and RJ-45 console
- Routing: Static and dynamic protocols (feature availability depends on IOS license)
- IPv6 support: Yes (license/IOS dependent)
- Form factor: Desktop/wall-mount; external AC power adapter

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