Description
The AudioCodes Mediant 4000B SBC Base System (M4KB/BASE/AC) is a high-performance, carrier-grade Session Border Controller engineered to secure, optimize, and scale enterprise VoIP environments. Designed for medium- to large-scale deployments, it supports up to 5,000 concurrent SBC sessions, ensuring robust performance for data centers, contact centers, multi-site organizations, and government networks.
Equipped with dual hot-swappable AC power supplies, the Mediant 4000B delivers operational resiliency and high availability, safeguarding your communication infrastructure from downtime. Advanced security features such as DoS/DDoS protection, SIP message policy enforcement, topology hiding, TLS/SRTP encryption, and FIPS 140-2 Level 1 compliance provide strong perimeter defense across diverse VoIP ecosystems.
With flexible SIP interworking, extensive codec support, transcoding capabilities, and seamless interoperability with major SIP trunks and cloud platforms, the Mediant 4000B offers unmatched versatility. Its high-density networking architecture—featuring eight 100/1000Base-T Ethernet ports—supports physical separation across LAN, WAN, media, control, and OAM environments.
Built for demanding enterprises, government agencies, and service providers, the Mediant 4000B Base System ensures scalable growth, secure communication, superior voice quality, and sustainable uptime in mission-critical deployments.
| Category | Specification |
|---|---|
| SKU | M4KB/BASE/AC |
| Product Type | Session Border Controller (SBC) |
| Max Signaling Sessions | 5,000 |
| Max RTP/SRTP Sessions | 5,000 |
| Max Transcoding Sessions | 5,000 |
| Max Registered Users | 20,000 |
| Network Interfaces | 8 × 100/1000Base-T Ethernet ports |
| Security Features | DoS/DDoS protection, ACL, dynamic blacklisting, SIP firewall, TLS/SRTP, HTTPS, SSH, topology hiding |
| SIP Interoperability | Full SIP B2BUA, transport mediation (UDP/TCP/TLS/WebSocket), IPv4/IPv6, header/URI manipulation |
| Codec Support | G.711, G.723.1, G.726, G.729A/B, GSM-FR, AMR-NB/WB, SILK NB/WB, Opus NB/WB |
| Voice Quality Tools | Transrating, echo cancellation, jitter buffer, packet loss concealment, RTCP-XR |
| High Availability | 1+1 redundancy with preserved active calls |
| Power Supply | Dual hot-swappable AC power supplies (100–240V AC, 50–60Hz) |
| Form Factor | 1U rack-mountable |
| Dimensions (H × W × D) | 1U × 19" × 14.9" (approx. 444 × 378 mm) |
| Weight | Approx. 7.4 kg (16.3 lbs) |
| Operating Temperature | 5°C to 40°C |
| Compliance | FIPS 140-2 Level 1, TAA-ready 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.
Building a Complete AV System?
This product is rarely deployed alone. It’s typically part of a fully integrated AV system. AVENDOR designs, integrates, and supports end-to-end environments—from single rooms to enterprise-wide deployments.
- System Design & Engineering
- Installation & Integration
- Programming & Ongoing Support
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