• Cisco 2921 VSEC CUBE router with silver accents and cooling vents
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Cisco

Cisco C2921-VSEC-CUBE/K9 | ISR 2921 VSEC + CUBE | Secure voice SBC | SRTP/TLS | SD-WAN: No | LTE: Optional (EHWIC)

C2921-VSEC-CUBE/K9

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Description

Enterprise voice router bundle enabling secure SIP trunking with CUBE and enhanced voice/security via VSEC licensing. Acts as a session border element for interconnecting ITSPs, UC systems, and PSTN gateways, with modular DSP for transcoding.

Features

- Secure SIP trunk demarcation with CUBE
- Enhanced voice security (SRTP/TLS) and policy control
- Flexible media interworking and codec normalization
- Modular PSTN and analog interface options
- Option for cellular WAN resiliency via EHWIC

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

Technical Specifications

- Platform: ISR 2921 (G2) enterprise router
- Licensing: VSEC + CUBE (Unified Border Element) for secure SIP trunking
- Integrated Ethernet: Multiple 10/100/1000 RJ-45 interfaces
- Voice security: SRTP and TLS signaling support
- Media services: Transcoding/Transrating with PVDM3 (if equipped)
- Interworking: SIP normalization and protocol interop for multi-vendor UC
- Modularity: EHWIC/VWIC/VIC slots for T1/E1/FXS/FXO as needed
- SD-WAN support: No
- LTE/Cellular: Optional via EHWIC cellular modules

FAQs

Q: What does the VSEC + CUBE license enable?
A: It enables secure SIP trunk demarcation, media/session interworking, SRTP/TLS, and policy control at the WAN edge.

Q: Is DSP hardware required for transcoding?
A: Yes. PVDM3 modules provide resources for transcoding, conferencing, and tone services.

Q: Can this act as a PSTN gateway?
A: Yes, with appropriate voice interface modules (e.g., T1/E1 PRI, FXS/FXO) installed.

Q: Does it support SD-WAN?
A: No. Traditional routing and QoS are supported; SD-WAN is not.

Q: Is cellular LTE failover available?
A: Yes, via compatible EHWIC LTE/3G modules.

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