Description
Enhance your enterprise communications with the Cisco FLASR1-SBC-RTU, a DBE Base Right-To-Use (RTU) License for Release 2.3.x and prior. As part of Cisco’s Unified Border Element (CUBE) solution, this perpetual license unlocks essential Session Border Controller (SBC) functionality on supported Cisco IOS XE platforms, enabling secure SIP trunking, protocol interworking, and seamless connectivity to PSTN, cloud services, and business-to-business networks.
Product Overview
Part of the Cisco Collaboration Edge Architecture, Cisco Unified Border Element (CUBE) version 14 (compatible with prior releases via this RTU license) is an enterprise-class SBC solution for connecting unified communications networks with IP services. It provides comprehensive interworking for voice, video, and mobile systems, supporting PSTN interconnect via SIP trunks, TDM-to-SIP migrations, certified cloud connections (Webex CCA, Webex Calling, HCS, Microsoft Teams Direct Routing), business-to-business interconnect, multi-tenant solutions, and codec interworking.
CUBE terminates and re-originates signaling and media, ensuring secure demarcation, flexible session control, policing, and QoS. It integrates with Cisco CME and SRST for SIP trunk connectivity.
Security and Compliance Features
- Flexible security rules to prohibit unauthorized connections
- Behavior evaluation for TDoS detection and response (terminate, redirect, record)
- Interworking of encrypted/non-encrypted streams
- Media stream replication for SIPREC or HTTP API recording
Cloud Communications and Contact Center Support
- Registration proxy for Cisco MPP/third-party SIP endpoints to reduce WAN load
- Lineside survivability for SIP IP Centrex during outages
- Call Progress Analysis (CPA) for outbound campaigns
- IVR solutions
- Media replication for recording/analysis
Flexibility, Reliability, and Scale
CUBE runs on Cisco IOS XE Software alongside IP networking, security, and QoS features. Deploy on ISR, Catalyst Edge, ASR families, CSR, or Catalyst Edge Software. Supports stateful HA with active/standby pairs and clustering. From IOS XE 17.7.1a, deployable in Cisco SD-WAN. Smart Licensing enables pooling/portability.
CUBE Licensing Models Enabled by FLASR1-SBC-RTU
- Trunking: Standard (single node) or Enhanced (HA/advanced) for site-to-PSTN
- Lineside: Registration proxy/survivability for SIP endpoints
- Media Proxy: Forking to up to five destinations for recording/compliance
10 units in stock for immediate dispatch. Special offer: $1893 (92% savings). PDF Datasheet available for full details.
Platform Compatibility
Supports wide range of Cisco routers with varying session capacities (see tech_specs for details). Operational capacity depends on call rate, type, transcoding, etc.




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