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/μ-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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