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 gateway 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
IP
Network
PBX
PBX
PBX
FXO
FXO
FXO
Exte sion
Extension side
n
PBX
side
IP
Network
IP
Network
FXO
FXO
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