32 FXS VoIP Gateway


• SIP V2.0 ( RFC 3261, 3262, 3263, 3264 )
• 2*10/100/1000M RJ45 ports (1 WAN, 1 LAN)
• 32 FXS RJ11 ports    
• Real time FAX over IP via T.38 and T.30 FAX with G.711
• PESQ is above 4.4 in G.711, PESQ is above 3.7 in G.729
• Field proven compatibility and stability
• Auto-provisioning- TFTP/HTTP/HTTPs
• TR-069, SNMP
• FCC, CE, UL, RoHS certification
  • Overview
  • Features
  • Specifications
  • Download
What this product does

A powerful VoIP Gatewayr function

FGW4148-32S, which has 32 FXS ports , one LAN port and one WAN port, is one of the most popular VoIP gateway researched and produced by Flyingvoice. This product can not only provide 32 SIP lines for users to make calls, but also it is a wire-speed NAT router, make you enjoy easy network atmosphere. What’s more, FGW4148-32S support T.38 real time FAX and T.30 FAX with G.711.

FGW4148-32S is a stand-alone device, which requires no PC to make Internet calls. This gateway guarantees clear and reliable voice quality on Internet, which is fully compatible with SIP industry standard and able to interoperate with many other SIP devices and software on the market.

How to Connect FGW4148-32S to the Internet ?
1) Insert one end of the ethernet cable into the WAN port on the back panel of the FGW4148-32S and the other end of the cable to your existing broadband connection port.
2) Connect the LAN port on the back panel of the FGW4148-32S to your conventional Gateway using a standard Gateway cabling.
3) If need to set us a small LAN network, the FGW4148-32S should work in router or bridge mode so that you or more people can access to the Internet through FGW4148-32S. Then you need to connect your PC or LAN connection equipment to the LAN port on the back panel of the FGW4148-32S using Ethernet cable.
4) Connect the power adapter to the power port at the back panel of FGW4148-32S and then plug another end of power adapter into a wall outlet or power strip. The LED of  FGW4148-32S will turn on to indicate operated properly.
Notice: please do not attempt to use other different power adapter or cut off supply during configuration or updating FGW4148-32S VoIP Gateway. Using other power adapter may damage FGW4148-32S and will void the manufacture warranty.

Ways to Configure FGW4148-32S
There are three ways to configure FGW4148-32S: use IVR, use provision and use WEB GUI, recommend is WEB GUI. And you can configure only some parameters through IVR, like WAN port IP address, WAN port IP mode, Subnet mask and so on. User presses **** to start IVR, and the IVR will lead you to configure. Every time you finish some changes, you may need reboot FGW4148-32S to make the changes take effective. Details about IVR, please refer to FGW4148-32S user manual. Provision is also a convenient way to make configurations, to get more information about provision, please refer to provision user manual. And you can configure all the parameters of FGW4148-32S through WEB GUI, login to FGW4148-32S’s webpage, then you can begin to configure. 

The login webpage of FGW4148-32S:

Basic use of FGW4148-32S

1) Connect a analog telephone to FGW4148-32S’s FXS port, register an account and make calls;
2) Connect a FAX machine to FGW4148-32S’s FXS port, register an account and send FAX;
FGW4148-32S Main Features

The FGW4148-32S, 32 FXS VoIP gateway products in Flyingvoice, which enables customers to register to different SIP Proxy server, IP PBX and establish up to 32 concurrent VoIP calls for more flexibility in the voice communication.

Their excellent voice quality, packed feature functionality and best-in-class price-performance point enable consumers to maximize the power of IP voice and data connectivity.

FGW4148 Series Comparison

Features/Model FGW4148-16S FGW4148-32S FGW4148-48S
Network Ports 2 RJ45 10/100/1000M
2 RJ45 10/100/1000M 
2 RJ45 10/100/1000M
FXS Ports 16 32 48
SIP Accounts 16 32 48
Wire-Speed NAT Yes Yes yes
DHCP Client/Server Client/Server Client/Server
Voice Codec G.711 (A-law, U-law), G.729A/AB,G.723,G.722
Management Integrated IVR, Web browser, Auto-provisioning with HTTP/TFTP/HTTPS,
FAX T.30, T.38 Fax
FGW4148-32S Specification

Hardware Features
Interface 1*10/100/1000Mbps LAN port
1*10/100/1000Mbps WAN port
32 FXS ports
1 Power set
Power Supply AC Input : 100-240v, 50-60Hz;  DC Output: 12V, 3A
Environmental  Operation Temperature: -5~45 Degree C
Storage Temperature: -25~85 Degree C
Relatively Humidity: 10%~90% No Condensing
Shock: Up to 75cm Drop upon package
Software Features
Audio Codec Features G.711 (A-Law, μ-Law) with PAMS above 4.3
G.729A/AB with PAMS above 4.0
Adaptive Jitter Buffer Management
Voice Activity Detection
Comfort Noise Generation
Echo Cancellation
T.30 FAX with G.711
Real time FAX over IP via T.38(Phone 2 port only)
Protocols SIP V2 (RFC 3261,3262,3263,3264)
Backward Compatible with RFC2543
Session Timer (RFC4028)
SDP (RFC2327)
RTP/RTCP (RFC1889 and RFC1890)
NAPTR for SIP URI Lookup (RFC2915)
STUN (RFC 3489)
ARP/RARP (RFC 826/903)
SNTP (RFC 2030)
HTTP Server for Web Management
TFTP/HTTP/HTTPS for Auto Provisioning
DNS/DNS SRV (RFC1706 and RFC 2782)
Management Firmware Upgradeable
Web Management Interface
IVR-driven Management Interface
Local and Remote Syslog (RFC3164)
Auto Provisioning
SNTP Time Synchronization
Multi User Level
Applications NAT/NAPT Router function
MAC Address Cloning
DHCP Server

SIP proxy redundancy – dynamic via DNS SRV, A records
NAT Traversal by STUN
QoS with Layer 3
DHCP Client and DHCP Server
IP conflict detection
Call Features 3-way Conference
Music on hold
DTMF Relay: In-band, Out-band and SIP INFO
Call Hold
Call Forwarding
Call Mute
Call Transfer
Call Waiting
Speed Dial
Caller ID and CWCID
Real time fax over IP via T.38
T.30 FAX with G.711
Dial Plan
Black List
Call Log