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Audiocodes Mediant 4000 GTPM00668 M4K11/BASE/RED/AC Session Border Controllers


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Audiocodes Mediant 4000 GTPM00668 M4K11/BASE/RED/AC Session Border Controllers

Item is Used with Normal Wear and Tear, Tested and Working.

Comes with Power Cord Only.

Technical Specs

  • Max. Signaling/Media Sessions: 5, 000
  • Max. SRTP/RTP Sessions: 3, 000
  • Max. Transcoding Sessions: 2, 400
  • Max. Registered Users: 20, 000
Network Interfaces
  • 8 Redundant 100/1000 Base-T Ethernet ports for physical separation between multiple LAN and WAN between Media, Control and OA&M
  • Access Control
  • DoS/DDoS line rate protection, bandwidth throttling, dynamic blacklisting
  • VoIP Firewall
  • RTP pinhole management, rogue RTP detection and prevention, SIP message policy, advanced RTP latching
  • Encryption/Authentication
  • TLS, DTLS, SRTP, S, SSH, client/server SIP Digest authentication, RADIUS Digest
  • Privacy
  • Topology hiding, user privacy
  • Traffic Separation
  • VLAN/physical interface separation for multiple media, control and OAMP interfaces
  • Intrusion Detection System
  • Detection and prevention of VoIP attacks, theft of service and unauthorized access
  • Full SIP transparency, mature and broadly deployed SIP stack, stateful proxy mode
  • SIP interworking
  • 3xx redirect, REFER, PRACK, session timer, early media, call hold, delayed offer
  • Registration and Authentication
  • User registration restriction control, registration and authentication on behalf of users, SIP authentication server for SBC users
  • Transport Mediation
  • SIP over UDP/TCP/TLS/WebSocket, IPv4 / IPv6, RTP / SRTP (SDES/DTLS)
  • Message Manipulation
  • Ability to add/modify/delete SIP headers and message body using advanced regular expressions (regex)
  • URI and Number Manipulations
  • URI user and host name manipulations, ingress and egress digit manipulation
  • Transcoding and Vocoders
  • Coder normalization including transcoding, coder enforcement and re-prioritization, extensive vocoder support: G.711, G.723.1, G.726, G.729, GSM-FR, AMR-NB, AMR-WB (G.722.2), SILK-NB/WB, Opus-NB/WB
  • Signal Conversion
  • DTMF/RFC 2833/SIP, T.38 fax, packet-time conversion
  • WebRTC Controller
  • Interworking between WebRTC devices and SIP networks Supports WebSocket, Opus, VP8 video coder, lite ICE, DTLS, RTP multiplexing, secure RTCP with feedback
  • NAT
  • Local and far-end NAT traversal for support of remote workers
  • OAM&P
  • Browser-based GUI, CLI, SNMP, INI Configuration file, REST API, EMS
  • Multi Tenancy
  • Advanced multi-tenant SBC partitioning


Condition Description An item that has been restored to working order by the eBay seller or a third party not approved by the manufacturer. This means the item has been inspected, cleaned, and repaired to full working order and is in excellent working condition. This item may have cosmetic blemishes and may or may not be in original packaging. See the listing description for full details.