Click Fraud Mediatrix 4404plus 4 BRI ports Digital VoIP Gateway
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Mediatrix 4404plus 4 BRI ports Digital VoIP Gateway

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Key Features
  • User programmable call handling
  • Deployable in SIP VoIP networks
  • Fax over IP support, including T.38

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Please Note: This product has been discontinued. Please see the VoIP Gateways Category for alternative products.

Mediatrix 4404plus 4 BRI ports Digital VoIP Gateway - Power over Ethernet Version (PoE)

The Mediatrix 4404plus 4 BRI ports Digital VoIP Gateway (PoE) is an ideal solution for enterprises and service providers that want to easily connect ISDN equipment, such as PBXs, through a BRI interface to an IP network or as a gateway to the PSTN.

4404plus Key Benefits

  • 4 BRI ports
  • Secured SIP signalling and media transmission
  • User programmable call handling
  • Deployable in SIP VoIP networks
  • HTTP, SNMP, FTP and TFTP for configuration and management
  • Fax over IP support, including T.38
  • Multiple codec support
  • Multiple LEDs for status indication at a glance
  • 1 to 4 ISDN BRI ports software configurable as NT or TE
  • Up to 8 simultaneous calls
  • 2 Ethernet ports
  • Configurable point-to-point, point-to-multipoint and connector pinout

Comparison Table

VoIP Call Capacity
Mediatrix 4401/4401plus 1 BRI port Up to 2
Mediatrix 4402/4402plus 2 BRI ports Up to 4
Mediatrix 4404/4404plus 4 BRI ports Up to 8

Note that plus versions e.g 4404plus are Power over Ethernet (PoE)

Mediatrix 4404plus - Technical Specifications


  • 4 port BRI
  • 2 ports ETH

Media Processing

  • G.711 (A-law and µ-law), G.723.1a, G.726, and G.729a/b
  • G.168 echo cancellation
  • DTMF detection and generation
  • Carrier tone detection and generation
  • Silence detection/suppression and comfort noise
  • Configurable de-jitter buffer and packet length

IP Telephony Protocol

  • SIP (RFC 3261) over UDP, TCP, and TLS
  • IMS (3GPP TS 24.229)
  • RTP (RFC 3550)
  • SDP (RFC 4566)
  • Multi-part body support
  • Redundancy support via DNS SRV
  • Multiple trunk support
  • IPv4 and IPv6 dual stack signaling and media

Digital Telephony

  • ISDN speech, audio, and data (Fax Gr 4, UDI 64, and RDI 64)
  • ECMA-143 (QSIG-BC)
  • Advice of Charge AOC-D and AOC-E (ETS 300 182)
  • Power feeding for BRI phones (model dependent)

Call Routing

  • Local switching
  • Call filtering and blocking
  • Calling/called number manipulation using regular expressions
  • Routing criteria:
    • Interface
    • Calling/called party number
    • Calling/called URI
    • Time of day, day of week, and date
  • Mapping and transformation of call properties to/ from SIP headers
  • Hunt groups

Fax and Modem Support

  • Group 3/super G3 fax real-time fax over IP
  • T.38 fax relay (9.6 k and 14.4 k)
  • Clear channel (G.711) fax and modem pass-through

Enhanced Security

  • Denial of Service (DoS) protection
  • SIP over TLS
  • SRTP with AES cipher – 128 bits
  • MIKEY key management protocol (RFC 3830 and 4567)
  • SDES key management protocol (RFC 4568)
  • TLS-encrypted configuration and management
  • X.509 certificate management
  • OCSP (Online Certificate Status Protocol) revocation status verification
  • Supported TLS key exchange mechanism
    • RSA
    • Diffie-Hellman
  • Supported TLS ciphers (minimum):
  • AES (128 and 256 bits)
  • 3DES (168 bits)


  • Zero-touch provisioning
  • TR-069, TR-104, and TR-111
  • Web GUI
  • SSH and TELNET
  • SMNP v1, v2c, and v3
  • Scripts/firmware files uploaded via HTTP, HTTPS, FTP, and TFTP
  • Multiple levels of management access rights
  • Customisable CDR
  • Event notifications via Syslog, SIP, log file, and SNMP traps
  • Remote activation of service licenses

Monitoring and Troubleshooting

  • Alarms and traps
  • Call Details Record (CDR)
  • Media quality statistics
  • System: CPU and memory usage
  • PCM capture
  • IP network capture
  • Diagnostic Traces


  • IPv4 – IPv6
  • Multiple IP addresses per link or VLAN
    Multiple VLANs per link
    DHCP client
  • PPPoE (RFC 2516)
    IEEE 802.1q + DSCP QoS tagging (media, signaling,
    and mgmt)
  • IEEE 802.1x wired authentication
  • LLDP-med (ANSI/TIA-1057)
  • QoS traffic shaping
    Firewall with stateful inspection, rate-limitation, and
    automatic black-listing
    Static routing
  • NAPT
  • DHCP Server

Quality of Service (QoS)

  • Bandwidth limitation and traffic shaping
  • TOS/DiffServ
  • IEEE 802.1p/Q
  • RTCP-XR – special order

Physical Interfaces

  • 2 x 10/100 Base-T Ethernet RJ-45 connectors

Operating Environment

  • Operating temperature: 0ºC to 45ºC
  • Storage temperature: -20ºC to 70ºC
  • Humidity: up to 85%, non-condensing

Power Supply

  • External 100-240 VAC power supply


  • Height: 4.9 cm (1.9 in.) approx.
  • Width: 22 cm (8.7 in.) approx.
  • Depth: 17.6 cm (6.9 in.) approx.
  • Weight: 545 g (0.75 lb.) approx

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