01
Legacy PBX Integration
Bridge existing PBX systems to SIP trunks without forcing an immediate rip-and-replace migration.
Mediatrix G7 Series
Secure All-in-One VoIP Gateway for PRI, BRI, FXS & FXO
The Mediatrix G7 Series is a reliable and secure media gateway for connecting legacy PBX systems, analog endpoints and digital trunks to modern SIP networks, cloud telephony services, IP PBX systems and PSTN replacement projects.
Mediatrix G7 Series
PRI • BRI • FXS • FXO • SIP
PRI
BRI
FXS
FXO
GbE
120Voice channels depending on configuration
5 GbE10/100/1000 Base-T interfaces
TLS 1.3Encrypted signaling and management
Legacy PBX BridgeIntegrate incumbent PBX systems with SIP trunks and cloud telephony.
PRI / BRI / FXS / FXOSupport analog and digital telephony interfaces in one gateway family.
Secure SIPTLS, SRTP, X.509 certificates, OCSP and DoS protection.
Mass DeploymentZero-touch provisioning, TR-069 and remote management for operators.
Technical positioning
Connect any analog or digital telephony interface to SIP.
The G7 Series is designed for organizations that need to preserve existing telephony investments while moving toward secure SIP trunking, IP PBX, hosted UC, cloud telephony and PSTN/TDM replacement.
02
PSTN & TDM Replacement
Convert ISDN, R2 and analog signaling into SIP for modernization projects driven by copper and TDM sunset.
03
Cloud Telephony Access
Provide SIP termination for cloud telephony, IP-Centrex and hosted unified communications services.
04
Branch Survivability
Support local switching and survivability when WAN connectivity to hosted UC or PBX services is unavailable.
05
Fax & Modem Continuity
Support T.38 realtime fax and G.711 clear channel fax/modem pass-through for critical legacy services.
06
Advanced Call Routing
Use local switching, number manipulation, hunt groups and criteria-based routing for complex deployments.
Integrated technical specifications
All key G7 technical details directly on the page.
No separate datasheet is required for buyer education. The specifications below cover media, SIP, digital and analog telephony, fax, QoS, security, management, networking, physical interfaces and operating conditions.
Media Processing
- Codecs: G.711, G.722, G.723, G.726, G.729a/b
- Echo: G.168 echo cancellation
- 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 redundancy, multiple trunks and IP-phone survivability
- IP: IPv4 and IPv6 dual stack
Digital Telephony
- Euro ISDN EDSS-1 / ETSI PRI / NET5
- BRI / NET3
- ISDN NI-2, DMS100 and 5ESS for US T1 PRI
- ISDN speech, audio and data including Fax Gr 4, UDI 64 and RDI 64
- ECMA-143 QSIG-BC
- E1 R2 line signaling ITU-T Q.421 and R2 MFC ITU-T Q.441
- T1/E1 E&M, MF-R1 and DTMF signaling
- Advice of Charge AOC-D and AOC-E
Analog Telephony
- Call forward, call transfer, call waiting and call hold
- 3-way conference calling
- On-hook and off-hook Caller ID
- Country tone presets, customizable tones and ring patterns
- Distinctive ringing, Message Waiting Indication and Music on Hold
- Echo cancellation and answer/disconnect signaling
- Battery reversal support for pay phones
Fax, Modem & QoS
- Fax: Realtime T.38 fax
- Pass-through: Clear channel G.711 fax and modem pass-through
- QoS: Bandwidth limitation and traffic shaping
- Tagging: ToS/DiffServ and IEEE 802.1p/Q
- Compression: High compression codec support for bandwidth-sensitive deployments
Security
- Denial-of-Service protection
- SIP over TLS
- SRTP with AES 128-bit cipher
- MIKEY and SDES key management
- TLS-encrypted configuration and management
- X.509 certificate management and OCSP revocation verification
- TLS 1.3 and secure TLS ciphers including ECDHE with AES-256 and SHA-384
Management & Troubleshooting
- Zero-touch provisioning
- TR-069, TR-104 and TR-111
- Auto provisioning through 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 activation of service licenses
- Alarms, CDR, RTCP-XR/eMOS, media quality statistics, PCM capture, IP network capture and diagnostic traces
Networking
- IPv4 and IPv6
- Multiple IP addresses per link or VLAN
- Multiple VLANs per link
- DHCP client and DHCP server
- PPPoE RFC 2516
- IEEE 802.1q and DSCP QoS tagging for media, signaling and management
- IEEE 802.1x wired authentication and LLDP-MED
- Stateful firewall with rate limitation and automatic blacklisting
- Static routing and NAPT
Physical Interfaces
- 5 × 10/100/1000 Base-T Ethernet RJ-45 connectors
- 2 × TDM sync RJ-45 connectors
- 1, 2 or 4 × RJ-48 E1/T1 connectors depending on configuration
- 8 × RJ-48 BRI S/T connectors depending on configuration
- 8 × RJ-11 FXS connectors depending on configuration
- 4 or 24 × RJ-11 FXO connectors depending on configuration
Power & 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 mounting brackets × 19.5 cm D
- Weight: 3 kg
How it works
Preserve legacy systems. Add secure SIP intelligence.
The G7 functions as a controlled migration layer between incumbent analog/digital telephony and the modern IP communications core.
1. Legacy SidePBX, PRI, BRI, analog phones, FXO lines, fax, modem and PSTN interfaces.
2. Mediatrix G7Terminates and converts analog or digital telephony into managed SIP sessions.
3. Routing LayerApplies call filtering, number manipulation, local switching and hunt groups.
4. Secure SIPProtects signaling and media through TLS, SRTP, certificates and hardened networking.
5. Modern CoreConnects to SIP trunks, IP PBX, cloud telephony, hosted UC or monitoring systems.
FAQ
Mediatrix G7 questions buyers search for.
SEO-ready answers for SIP trunking, legacy PBX integration, PRI/BRI migration, PSTN replacement and secure media gateway projects.
What is the Mediatrix G7 Series used for?
The G7 Series connects analog and digital telephony infrastructure to SIP networks, cloud telephony services, IP PBX systems and PSTN/TDM replacement projects.
Does the G7 support PRI, BRI, FXS and FXO?
Yes. Depending on configuration, the G7 supports E1/T1 PRI, ISDN BRI, FXS and FXO interfaces.
Is the G7 suitable for SIP trunking?
Yes. It supports SIP trunking, multiple trunks, DNS SRV redundancy, local switching, call filtering and number manipulation.
Does the G7 support fax over IP?
Yes. It supports realtime T.38 fax and clear channel G.711 fax/modem pass-through.
Secure assessment request
Plan a controlled migration from legacy telephony to secure SIP.
Use the Mediatrix G7 Series when your project requires PRI, BRI, FXS, FXO, fax/modem continuity, call routing control, secure SIP transport and enterprise-grade management.
- Good fit for SIP trunking and PSTN/TDM replacement
- Supports analog and digital telephony migration
- Includes security, provisioning and monitoring capabilities
- Structured project fields for better lead qualification