FXO H.323 Gateway User Manual
Document Ver.: 118a
Release Sep, 2004
3
1. Start Up
1.1 Introduction
The FXO gateway provides voice/fax service over IP network with H.323
v3 protocol. By connecting to your existing ADSL or cable modem service,
which allows the use of a single, network for voice and fax services with
consequent saving in network infrastructure and greatly reduced
telephone charges. Ideal solution for providing low cost communications
between headquarters and branch offices in the world, as well as for
SOHO and office telephony applications.
FXO Gateways provides analog lines to connect local PSTN/PTT
interface (FXO), and converts voice/fax signal onto IP network. The
management feature is via RS-232C COM port and TELNET.
Application Architecture
FXO ports can connect with PSTN Line or Extension Line of PBX
IP
Network
PBX
FXS
FXO
FXO
PBX
Extension
Extension port
IP
Network
IP
Network
PBX
PBX
FXO
FXO
FXO
FXO
