Description
The AudioCodes Mediant 4000B SBC (Session Border Controller) is a high-capacity, enterprise-grade solution designed to secure, manage, and optimize VoIP and UC traffic across large organizations, data centers, hosted service providers, and government environments.
Engineered for performance and resiliency, the Mediant 4000B supports up to 5,000 concurrent SBC sessions, advanced VoIP security measures, and seamless interoperability with SIP trunking services, IP-PBXs, and Microsoft Teams Direct Routing.
This TAA-compliant model includes dual hot-swappable AC power supplies, ensuring continuous uptime and redundancy for mission-critical communication infrastructures. With comprehensive SIP interworking, transcoding capabilities, enhanced voice-quality features, and robust DoS/DDoS protection, the Mediant 4000B delivers a secure, reliable, and scalable SBC platform for modern enterprise networks.
| Category | Specification |
|---|---|
| Product Type | Session Border Controller (SBC) |
| Model / SKU | Mediant 4000B / M4KB/BASE/AC/TAA |
| TAA Compliant | Yes |
| Max Signaling Sessions | 5,000 |
| Max RTP/SRTP Sessions | 5,000 |
| Max Transcoding Sessions | 5,000 |
| Max Registered Users | 20,000 |
| Network Interfaces | 8 × 10/100/1000 Base-T Ethernet ports |
| Security Features | DoS/DDoS protection, bandwidth throttling, SIP firewall, RTP pinhole management, TLS/SRTP/HTTPS/SSH, topology hiding, STIR/SHAKEN |
| Interoperability | Full SIP transparency, SIP registrar functions, transcoding, SIP over UDP/TCP/TLS/WebSocket, IPv4/IPv6 support |
| Voice Quality Features | RTCP-XR, jitter buffer, packet loss concealment, echo cancellation, adaptive gain control, silence suppression |
| High Availability | 1+1 redundancy with preserved active calls |
| Management | Web GUI, CLI, SNMP, REST API, INI configuration, OVOC compatible |
| Physical Dimensions | 1U × 19” (444 mm) × 14.9” (378 mm) |
| Weight | Approx. 16.3 lbs (7.4 kg) |
| Mounting Options | Desktop or rack-mount |
| Power | Dual AC power supplies (hot-swappable), 100–240VAC, 50–60Hz |
| Operating Temperature | 5°C to 40°C |
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
