Sintel

Mediatrix G7 Product Series

Media5

The Mediatrix G7 Series is a secure and flexible media gateway designed to transition analog and digital telephone systems to SIP-based IP infrastructure. Supporting PRI, BRI, FXS, and FXO interfaces, it is well-suited for a wide range of migration scenarios.

Mediatrix G7 Product Series Technical Documentation

This document provides a detailed introduction to the Mediatrix G7 product series, manufactured by M5 Technologies, covering technical specifications, use cases, configuration options, and integration capabilities. The target audience includes operators, developers, and technical decision-makers. The content covers the product's key advantages, technical specifications, and application areas.

Introduction

The Mediatrix G7 Series provides a secure, unified platform for migrating analog and digital telephony systems to SIP (Session Initiation Protocol) based IP communication infrastructure. This product series is ideal for integrating existing PBX systems into SIP trunking, IP PBX, cloud telephony, and PSTN/TDM refresh projects. The G7 is designed as a media gateway supporting PRI, BRI, FXS, and FXO interfaces.

Key Product Features

  • Innovative and Secure: Provides a modernized voice infrastructure with security features such as TLS, SRTP, X.509 certificates, OCSP, and DoS protection.
  • Complex Transition Scenarios: All PRI, BRI, FXS, and FXO interfaces are combined in a single device.
  • Easy Configuration and Management: Simplifies operations for operators through zero-touch provisioning, TR-069 protocol, and remote management capabilities.
  • Fax and Modem Compatibility: Protects critical business processes through T.38 fax and G.711 open-channel relay capabilities.
  • Multi-Site Support: Simplifies multi-site operations through centralized configuration, remote troubleshooting, and standard deployments.

Application Areas

The Mediatrix G7 Series can be used in the following scenarios:

  • PRI E1/T1 Gateway: Connecting existing PBX systems to SIP trunking or IP PBX platforms.
  • ISDN BRI Gateway: Managing SIP relay for sites with ISDN BRI connections.
  • FXS Analog Gateway: Integrating analog phones, fax machines, and modem services into a SIP-based infrastructure.
  • FXO PSTN Gateway: Providing PSTN line access, local survivability, and failover routing when SIP services are unavailable.
  • Hybrid Interface Gateway: Enabling interoperability of PRI, BRI, FXS, and FXO interfaces during the transition process.
  • Secure SIP-Based Routing: Controlled SIP relay with TLS, SRTP, and centralized management.

Technical Specifications

Media Processing

  • Codecs: G.711, G.722, G.723, G.726, G.729a/b
  • Echo Cancellation: G.168 echo canceller
  • DTMF: Detection and generation
  • Voice Quality: Silence detection/suppression, comfort noise, de-jitter buffer, packet length configuration, and packet loss concealment

IP Telephony

  • SIP: SIP 2.0 RFC 3261 and 3GPP support
  • Transport: UDP, TCP, and TLS
  • Media: RTP/RTCP RFC 3550 and SDP RFC 4566
  • DTMF: In-band, out-of-band RFC 2833, and SIP INFO
  • Resilience: DNS SRV fallback, multi-trunk, and IP phone survivability

Digital Telephony

  • Euro ISDN EDSS-1 / ETSI PRI / NET5 BRI / NET3
  • US T1 PRI for ISDN NI-2, DMS100, and 5ESS
  • Group 4 Fax, including voice, voice-and-data, UDI 64, and RDI 64
  • ECMA-143 QSIG-BCE1 R2 line signaling
  • ITU-T Q.421 and R2 MFC ITU-T Q.441
  • T1/E1 E&M, MF-R1, and DTMF signaling
  • AOC-D and AOC-E Accountant

Analog Telephony

  • Off-hook/On-hook call progress, call transfer, call hold, and call pickup
  • Three-party conference calling
  • Off-hook/On-hook Calling Name Display
  • Country-specific tone settings, custom tones, and ringback patterns
  • Different ringback, Message Waiting Indicator, and Silence on Hold
  • Echo cancellation and answer/hangup signaling
  • Battery reversal support for payphones

Fax and Modem

  • Real-time T.38 fax
  • Open channel G.711 fax and modem relay
  • QoS: Bandwidth limiting and traffic shaping
  • Labeling: ToS/DiffServ and IEEE 802.1p/Q
  • Compression: High-compression codec support for bandwidth-sensitive deployments

Security

  • Denial of Service (DoS) Protection
  • SIP over TLS
  • SRTP with AES 128-bit encryption
  • MIKEY and SDES key management
  • X.509 certificate management and OCSP revocation verification
  • TLS 1.3 and secure TLS ciphers (AES-256 and SHA-384 with ECDHE)

Management and Troubleshooting

  • Zero-touch configuration
  • TR-069, TR-104, and TR-111 protocols
  • Automatic configuration via FTP, TFTP, HTTP, and HTTPS
  • Web GUI, SSH, and TELNET
  • SNMP v1, v2c, and v3
  • Syslog, SIP, log file, and SNMP trap notifications
  • Dual firmware banks and remote service license activation
  • Alarms, CDR, RTCP-XR/eMOS, media quality statistics, PCM recording, IP network logging, and identifier monitoring

Networking

  • IPv4 and IPv6 support
  • Multiple IP addresses per link or per VLAN
  • Multiple VLANs per port
  • DHCP client and DHCP server
  • PPPoE RFC 2516
  • IEEE 802.1q and DSCP QoS labeling (for media, signaling, and management)
  • IEEE 802.1x wired authentication and LLDP-MED
  • Stateful firewall, rate limiting, and automatic blacklisting
  • Static routing and NAPT

Physical Interfaces

  • 5 × 10/100/1000 Base-T Ethernet RJ-45 sockets
  • 2 × TDM synchronization RJ-45 sockets
  • 1, 2, or 4 × RJ-48 E1/T1 sockets (depending on configuration)
  • 8 × RJ-48 BRI S/T sockets (depending on configuration)
  • 8 × RJ-11 FXS sockets (depending on configuration)
  • 4 or 24 × RJ-11 FXO sockets (depending on configuration)

Power and Environment

  • Power: Internal 100–240 VAC power supply
  • Operating temperature: 0°C to 45°C
  • Storage temperature: -20°C to 70°C
  • Humidity: Up to 85%, non-condensing
  • Dimensions: 4.4 cm H × 48.5 cm W (with low-profile mounting brackets) × 19.5 cm D
  • Weight: 3 kg

How It Works

The G7 functions as a migration layer between existing analog/digital telephony systems and modern IP communication infrastructure. This process includes the following steps:

  1. Traditional Preference: PBX, PRI, BRI, analog phones, FXO lines, fax, and modem services.
  2. Mediatrix G7: Converts analog or digital phones to managed SIP sessions.
  3. Routing Layer: Applies call filtering, number manipulation, local routing, and homing groups.
  4. Secure SIP: Secured with TLS, SRTP, certificates, and certificate-based networks for signaling and media.
  5. Modern Infrastructure: Connects to SIP trunking, IP PBX, cloud telephony, hosted UC, or monitoring systems.

Frequently Asked Questions (FAQ)

1. What is the Mediatrix G7 Series used for?

The G7 Series is used to connect analog and digital telephony infrastructure to SIP networks, cloud telephony services, IP PBX systems, and PSTN/TDM refresh projects.

2. Does G7 support PRI, BRI, FXS, and FXO?

Yes. Depending on the configuration, G7 supports E1/T1 PRI, ISDN BRI, FXS, and FXO interfaces.

3. Is G7 suitable for SIP trunking?

Yes. G7 includes features such as SIP trunking, multi-trunk, DNS SRV fallback, local routing, call filtering, and number manipulation.

4. Does G7 support fax and modem relay?

Yes. It supports real-time T.38 fax and G.711 open-channel fax/modem relay.