Ribbon SBC 1000 Session Border Controller
The Ribbon SBC 1000 is a session border controller and gateway platform purpose-built for small and medium enterprises seeking secure, reliable connectivity between legacy voice infrastructure and modern SIP-based networks. The SBC-1K-R-FXS configuration delivers 8 FXS ports with 1 medium DSP, engineered to eliminate interoperability issues, reduce communications costs, and protect your network from IP-based attacks. With licensable growth to 24 FXS ports and SIP-to-SIP capabilities, this FXS gateway provides flexible expansion without costly hardware replacements, supporting any-to-any connectivity between FXS, FXO, BRI, PRI, and SIP endpoints.
Key Features
- 8 FXS ports with licensable expansion to 24 FXS for scalable voice connectivity
- 1 medium DSP module for advanced call processing and transcoding
- SIP-to-SIP and legacy-to-SIP interoperability for seamless network integration
- Session border controller functionality for network security and protocol translation
- Remote license enablement for simplified deployment and capacity upgrades
- Any-to-any endpoint connectivity supporting FXS, FXO, BRI, PRI, and SIP protocols
- Reduced communications costs through efficient gateway bridging
- IP-based attack protection and network isolation
Technical Specifications
| Specification |
Details |
| Manufacturer |
Ribbon Communications |
| Model |
SBC-1K-R-FXS |
| Product Line |
SBC 1000 Revised Chassis |
| FXS Ports |
8 (expandable to 24 via license) |
| DSP Module |
1 Medium DSP |
| Gateway Type |
Session Border Controller with FXS/SIP Gateway |
| Protocol Support |
FXS, FXO, BRI, PRI, SIP, SIP-to-SIP |
| Expansion Method |
Software licensing (no hardware replacement required) |
| Primary Use Case |
Small to medium enterprise voice network bridging |
Frequently Asked Questions
What is a session border controller and why do I need one?
A session border controller acts as a security gateway between your legacy voice systems and modern SIP networks. The Ribbon SBC 1000 protects against IP-based attacks, translates between incompatible protocols, and ensures reliable connectivity—essential for enterprises bridging old and new voice infrastructure.
Can I expand the FXS ports beyond 8?
Yes. The SBC-1K-R-FXS supports licensable growth to 24 FXS ports through remote software licensing. This eliminates the need for hardware replacement and allows you to scale capacity as your business grows.
What protocols does the Ribbon SBC 1000 support?
The SBC 1000 gateway supports FXS, FXO, BRI, PRI, and SIP endpoints, enabling any-to-any connectivity. This flexibility allows seamless integration with diverse voice systems and networks within your organization.
How does the medium DSP module improve performance?
The 1 medium DSP module handles advanced call processing, transcoding, and voice quality optimization. It enables the session border controller to manage complex protocol conversions and ensure clear, reliable voice transmission across heterogeneous networks.
