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FXS VOIP Gateways

FXS VOIP Gateway is a telephone extension to the IP network by providing telephone and fax services over IP network. It features the compliance of H.323 v3 protocol with H.450 services providing traditional PBX functionality and the support of DHCP for easy operation and system configurations and is an ideal low cost product for SME and SOHO IP telephony application.

FXS VOIP Gateway comes in two models: NG210A and NG410A, which provide you with a choice of two or four FXS ports. To access this free voice and fax communication, simply connect the for up to two or four analog phone/fax machines or PBX CO ports, and then to your existing Internet or Intranet connection. Once configured, then allows voice and fax to travel down the same path as your traditional data communications.

provides various voice codec of G.711, G.723.1 and G.729 with Dynamic Jitter Buffer and Bad Frame Interpolation delivering toll quality voice and fax services under managed network of VPN or public Internet network.

TELNET and COM port provide two easy ways of local and remote configurations, management and software download. This enables ITSP/ISP to provide centralized control, management and software upgrade to remote site gateways. This allows for remote configurations of IP/Gatekeeper addressing setting, dial plan, voice codec, Gatekeeper and Peer to Peer mode selection, QoS setting and call progress tone setting, etc.

Technical Specifications

Models
NG210A - 2-Port FXS VOIP Gateway
NG410A - 4-Port FXS VOIP Gateway
Interfaces
Two 10/100 Base-T Ethernet RJ-45 Ports
One DB-9 RS-232 COM Port
Two RJ-11 Telephone Ports for NG210A
Four RJ-11 Telephone Ports for NG410A
One DC 12V Input (supply with external power adaptor)
General Features
ITU-T H.323 v3 compliance
Gatekeeper Mode or Peer-to-Peer Mode
Line Polarity Reversal Generation
Call Progress Tone
PPPoE
Support of behind NAT Router or IP Sharing Device
E.164 Dial Plan
DTMF Detection/Generation
TFTP/FTP software upgradeable
Remote Configurations/Reset
LED indications for system status
MS NetMeeting v3.0 compatible
Support of Static IP and DHCP
Support of QoS by setting ToS (Type of Service) parameters of VOIP packets
Audio Features
Codec: G.711 a/Łg-Law, G.723.1, G.729
VAD (Voice Activity Detection)
CNG (Comfort Noise Generation)
G.168/165-compliant Adaptive Echo Cancellation
Dynamic Jitter Buffer
Bad Frame Interpolation
Complete voice band signaling support
Inband or Outband DTMF Detection/Generation
H.450 Services of Call Hold, Call Transfer and Call Forward
Gain/Attenuation Settings
Call Progress Tones: Dial Tone, Busy Tone, Call Holding Tone, 2nd Dial Tone and
  Ring-back Tone
Fax Support
Automatic Fax Detection
Group 3 Fax Relay at 2.4~14.4K bps
Support of T.38 Protocol
FXS Interface
2-wire Loop Start
Programmable AC Impedance, Feeding Voltage, Ring Voltage, Ring Cadence, Loop Current
  and Call Progress Tone
On-hook Voltage: 48Vdc
Ring Voltage: 45Vrms
Loop Current: Constant 23mA
Management Features
Two easy ways of system configurations:
Console Port
Telnet
LED Indicators for System Status
Status for Power, Telephone Lines, GK or P2P Mode, Normal or Downloading Mode,
  WAN/LAN's Link/Activity and 10/100 Base-T.
Physical Description
Dimensions: 223 mm (W) x 35 mm (H) x 152 mm (D)
Weight: 1.5 Kg
   
Specifications are subject to change without notice.

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