Product Overview
The stand-alone VoIP Gateway carries both
voice and facsimile over the IP network. It
supports SIP industry standard call control
protocol to be compatible with free
registration services or VoIP service provi
ders’ systems. It works in two different
modes: UA (User Agent) or Server. As a sta
ndard user agent, it is compatible to all
well-known Soft Switches and SIP proxy serv
ers. While running th
e optional server
software, the gateway can be configured to establish a private VoIP network over the
Internet without a 3
rd
party SIP Proxy Server.
There are 3 types of gateways in the same series: 2 ports, 4 ports and 8 ports (voice
ports, FXS and/or FXO). The gateway can be
seamlessly integrated to existing
network by connecting to a phone set, PBX,
key telephone system, fax machine or
PSTN line. With only a broadband connecti
on such as ADSL bridge/router, Cable
Modem or leased line router, it allows you
to gain access to voice and fax services
over the IP in order to reduce the cost
of international and long distance calls.
In addition, the in-built 4 ports Ethern
et switch supports comprehensive Internet
gateway functions to accommodate other PC
s or IP devices to share the same
broadband stream. QoS function allows voice
and data traffic to flow through where
voice traffic is transmitted in the highest priority. With TOS bit enabled, it guarantees
voice packets to have first priority
to pass through a TOS enabled router.
With the support of DDNS, it makes the ga
teway reachable by its domain name where
the ISP dynamically assigns the IP address. It helps users to host a web site or mail
server in a PPPoE or DHCP network. By
enabling the CDR function & setting up a
simple server, administrators are allowed to
log in and view all call records such as
call duration, time and date
of calls and latency.
The gateway can be assigned with a fixed IP
address or by DHCP, PPPoE. It adopts
the G.711, G.726, G.729A or G.723.1 voice co
mpression format to save the network
bandwidth while providing real-time and to
ll quality voice. In addition, in the event
that the power supply fails or Internet
connection is lost, the gateway can
automatically divert the FXS end to the PSTN network on the FXO port so users can
still use the conventional PSTN line to make
calls. This feature is especially useful
while dialing emergency calls (i.e. 911).
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