Description
The AudioCodes Mediant 4000B High-Availability SBC Pair (M4KB/BASE/R/AC/TAA) delivers a robust, redundant, enterprise-grade solution for securing and optimizing VoIP and SIP communications. Designed as a 1+1 redundant HA pair, this system ensures continuous operation even during hardware, network, or service interruptions—ideal for mission-critical enterprise, service provider, and government environments.
Built to support up to 5,000 concurrent SIP sessions, the Mediant 4000B provides exceptional signaling capacity, advanced security, and full SIP interoperability. Its dual hot-swappable AC power supplies provide added resilience, while TAA compliance makes it suitable for federal and regulated deployments requiring trusted, compliant infrastructure. The platform includes enhanced perimeter defense, voice quality optimization, transcoding, SIP normalization, and extensive management capabilities for seamless integration and centralized control.
| Category | Specification |
|---|---|
| Model | Mediant 4000B HA Pair |
| Form Factor | 1U Rack-mountable |
| Max Signaling Sessions | 5,000 |
| Max RTP/SRTP Sessions | 5,000 |
| Max Transcoding Sessions | 5,000 |
| Registered Users | Up to 20,000 |
| High Availability | 1+1 Redundant SBC pair; active calls preserved during failover |
| Interfaces | 8 × 100/1000 Base-T Ethernet ports |
| Security Features | DoS/DDoS protection, SIP firewall, TLS/DTLS/SRTP, topology hiding, bandwidth control |
| Certifications | FIPS 140-2 Level 1; TAA Compliant |
| Interoperability | Full SIP B2BUA, SIP normalization, transcoding, digit manipulation, Direct Routing certified |
| Voice Quality Enhancements | Echo cancellation, jitter buffer, PLC, transrating, voice gain control |
| SIPREC Support | Audio & video SIP recording |
| WebRTC Gateway | Browser-to-SIP interworking with Opus, VP8, DTLS, WebSocket |
| Management | GUI, CLI, SNMP, REST API, CDR, OVOC support |
| Dimensions (HxWxD) | 1U × 19" × 14.9" (approx. 444mm × 378mm) |
| Weight | Approx. 7.4 kg (16.3 lbs) |
| Power Supply | Dual hot-swappable universal AC: 100–240V AC, 50–60Hz |
| Operating Temperature | 5°C to 40°C |
| Use Cases | Enterprise voice security, SIP trunking, contact centers, government, large-scale SBC deployments |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
