FXO Gateway
FXO Gateway
IP311 FXO Port Analog VoIP Gateway – front view showing four FXO ports, two FXS ports, and network interfaces.
IP311 FXO Port Analog VoIP Gateway – right side view showing ventilation slots and chassis design.
IP311 FXO Port Analog VoIP Gateway – rear view with power input and mounting details.

IP311 4 FXO Gateway

Item Number: 1016216

4 Port FXO VoIP Gateway

  • 4 x FXO ports for PSTN trunk connectivity
  • 2 x FXS ports for analog phones, fax or legacy devices
  • Fax-over-IP support(T.38)
  • SIP over UDP, TCP, TLS
  • RTP, SRTP (SDES, DTLS 1.2), RTCP, ICE


 

The IP311 is a compact and reliable 4-port FXO gateway that bridges traditional PSTN lines and analog devices with modern VoIP infrastructure. It enables smooth migration from legacy telephony to IP-based communication systems while maintaining compatibility with existing equipment such as analog phones, fax machines, paging interfaces, and legacy control devices.

Designed for maritime, offshore, and industrial environments, the IP311 ensures a reliable bridge between your ship’s internal communication system and the outside world. Our FXO solution ensures that every call – whether to shore, satellite or platform, flows seamlessly through your existing PBX or IP-PBX network.

General
Dimensions 210mm(L) x 148mm(W) x 32mm(H)
Weight 840g
Environmental Operating: 32 - 113ºF / 0 ~ 45ºC, Humidity 10 - 90% (non-condensing); Storage: 14 - 158ºF / -10 ~ 70ºC, Humidity 10 - 90% (non-condensing)
Power Supply Power over Ethernet according to IEEE 802.3af, Class 3
Mounting Rack mount & Desktop
Analog Telephone FXS Ports 2 RJ11 ports (modular Jack 6P2C)
PSTN Line FXO Ports 4 RJ11 ports (modular Jack 6P2C)
Network Interfaces 2 x Gigabit Ethernet: 1000-BASE-T (auto negotiation), RJ-45 (modular Jack 8P8C)
Voice Codecs Opus-NB, G.711 A-law/U-law, G.722, G.723.1 (5.3), G.729A
VoIP Protocols H.323 Version 5, H.323 over UDP, TCP, TLS 1.3, SIP version 2, conform RFC 3261, SIP over UDP, TCP, TLS, RTP, SRTP (SDES, DTLS 1.2), RTCP, ICE, T.38
EMC compliance EN 55022:2010 + AC:2011(Class B), EN 55024:2010
Safety compliance EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 + A2:2013
Date Name Category Size Document
1016216-IP311_4_FXO_Gateway.zip CAD 2D 426.74 KB Login to download