User manual

Release 2.0 Digium, Inc. Page 33
Chapter 2: Card Installation
Zaptel Configuration
The Zaptel Configuration file, /etc/zaptel.conf, needs to be edited in order
for your Analog 410 Series card to work properly. When configuring the
settings in zaptel.conf, you are configuring the port signalling, not the
port type. FXO ports use FXS signalling, and FXS ports use FXO
signalling. If you have an FXS port in position 1 and an FXO port in
position 4, your zaptel.conf will look like:
fxs_ks=1
fxo_ks=4
loadzone=us
defaultzone=us
The following steps are necessary for Zaptel configuration:
1. If your card has any red FXO modules, add the following:
fxsks
This uses kewl start signalling which is loop start with disconnect
supervision. For example, a TDM440B card would be configured as
follows:
fxsks=1,2,3,4
Note: You should have identified the type of Analog 410 Series card
you have when you received it. If you are not sure, refer to Module
Identification on page 19 for assistance.