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ESC2420 User Guide version1.0
8
I. Installation and Procedure at a Glance
1. Before Installation
1) Check OS of PC used for Installation
You may install the gateway using PC thru Internet browser, Console, or Telnet. Please check OS of the
PC that will be used for Installation. (Win98, NT, Me, 2000, XP, Linux). There are minor differences in
setting up the network according to OS.
2) Check PC’s LAN Card
The PC that will be used to install the gateway must have LAN card. Please check if PC has LAN card
available.
3) Check Calling Environment
Before getting started, check calling environment about how many telephones you want to connect and if
you will use existing PSTN network. The telephones that can be directly connected to the gateway are
four. You may connect more than four telephones to use Internet call using PBX. You may connect the
gateway to PBX, and you can make Internet call from any telephone that is connected to PBX. But you
may only make four simultaneous Internet calls at once since the Gateway has only four FXS ports.
With PSTN back up allows to receive a call thru PSTN and automatically switches to PSTN when
power-out or problem in networking occurs