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1. Introduction
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 the free registration services or VoIP
service providers’ systems. It works in two different modes, UA (User Agent) or Server. As a standard
user agent, it is compatible to all well known Soft Switches, SIP proxy servers. While running the
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.
With the support of DDNS, it makes the gateway reachable by its domain name where the IP address
is dynamically assigned by the ISP. 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 and view all call records such as call duration, time and date of calls and latency, etc.
The gateway can be assigned with fixed IP address or by DHCP, PPPoE. It adopts the G.711, G.726,
G.729A or G.723.1 voice compression format to save the network bandwidth while providing real-time
and toll 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 (911).
Summary of Contents for voicecom
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