AudioCodes Media Pack MP-11x, Руководство пользователя

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Version 6.6 233 MP-11x & MP-124
User's Manual 20. Introduction
20 Introduction
This section describes configuration of the Gateway applications. The Gateway application
refers to IP-to-Tel call routing and vice versa.
Notes:
•
In some areas of the Web interface, the term "GW" application refers to the
Gateway applications, respectively.
•
The terms IP-to-Tel and Tel-to-IP refer to the direction of the call relative to the
device. IP-to-Tel refers to calls received from the IP network and destined to the
PBX (i.e., telephone connected directly or indirectly to the device); Tel-to-IP refers
to calls received from telephones connected directly to the device's FXS ports or
from the PBX, and destined for the IP network.
•
FXO (Foreign Exchange Office) is the interface replacing the analog telephone
and connects to a Public Switched Telephone Network (PSTN) line from the
Central Office (CO) or to a Private Branch Exchange (PBX). The FXO is designed
to receive line voltage and ringing current, supplied from the CO or the PBX (just
like an analog telephone). An FXO VoIP device interfaces between the CO/PBX
line and the Internet.
•
FXS (Foreign Exchange Station) is the interface replacing the Exchange (i.e., the
CO or the PBX) and connects to analog telephones, dial-up modems, and fax
machines. The FXS is designed to supply line voltage and ringing current to these
telephone devices. An FXS VoIP device interfaces between the analog telephone
devices and the Internet.