Scalable VoIP-FXO-FXS Gateway


ETERNITY GE12S is a scalable VoIP to FXO-FXS gateway providing scalability of up to 384 IP channels. It is available in multiple configurations of FXO/FXS variants. The gateway offers 16 SIP accounts to register with various SIP service providers.

Organizations with traditional analog system can now seamlessly migrate to IP, while preserving their existing communication infrastructure and dialing patterns. For organizations already migrated to IP, this gateways offers connectivity to fixed-line networks using FXO-FXS interface.

ETERNITY GE12S is a future-proof and scalable solution to grow with the communication needs of an organization. With Matrix ETERNITY GE gateway, service providers and system integrators can effectively deliver carrier-grade services as well as enterprise based applications.


VoIP Gateway for Traditional PBX

  • Seamless connectivity to cost-effective IP network
  • Maintain existing PBX infrastructure and dialing habits
  • Direct IP and proxy calling, even without static IP
  • Make and receive IP calls from analog terminals
  • Compatible with most make of traditional PBX
  • Scalable gateway to grow as per business need
VoIP Gateway for Traditional PBX

FXO-FXS Gateway for an IP-PBX

  • Seamless integration with existing LAN/WAN infrastructure
  • Deployable in all SIP based VoIP networks
  • Reduced call cost for making POTS calls
  • Flexibility of scaling the connectivity as per business requirement

Key Features

  • Modular and Scalable System
  • Completely non-blocking architecture
  • Easy integration with existing telephony interfaces
  • Open-standard SIP support
  • Make and receive IP calls from analog extensions
  • Register to multiple SIP proxy servers
  • Call budgeting based on allocated amount, minutes and call count
  • Time/number based call routing
  • Restrict unwanted calls with list of denied numbers
  • CPC signaling to prevent port blockages and accurate billing
  • Caller ID presentation and restriction
  • Emergency number dialing
  • Hotline extension setting
  • Web-based remote administration


System Capacity:

Expansion Slots 12
Expansion Cards 16/32 VoIP Channels per Interface Card
8/12/16/20 SLT Ports per Interface Card
2/4/8/16 CO Ports per Interface Card

VoIP Port:

Protocol SIP v2, SDP, RTP (RFC 2833)
Connector Ethernet (RJ 45)
SIP Accounts 16
Simultaneous VoIP Calls 16 to 384
Voice Quality G.168 Echo Cancellation, Layer3 QoS and DiffServ, CNG
Voice Codecs G.711 (A-law, µ-Law), G.723, G.729AB, GSM-FR, GSM-EFR
and iLBC Voice Codec

FXO Port:

Connector RJ11 Connector
Dialing and Reception DTMF and Pulse Dialing
CLIP DTMF, FSK ITU-T V.23 and FSK Bellcore 202A CLI

FXS Port:

Connector RJ11       
Dialing and Reception Pulse and DTMF Dialing
CLIP DTMF and FSK CLI Presentation
Answering and Disconnect Signaling Polarity Reversal for call Connect/disconnect signaling

Power Supply:

Input Option 1 (Mains): 100-240 VAC, 47-63 Hz
Option 2 (DC): 48VDC +/- 20%
Power Consumption 50W (Typical)


Dimensions (WxHxD) 41.2x16.0x25.4cm (16.22"x6.29"x10.0")
Mounting Options Wall Mount, Table Top and 19" Rack Mount
Operating Temperature -10° C to +50° C (14° F to +122° F)


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