X204 hybrid telephony card User Manual
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OpenVox Communication Co. LTD.
URL: www.openvox.cn
Chapter 1 Overview
The X204 series cards are versatile devices used for connecting your phone
network to the PSTN (Public Switched Telephone Network) world. This is
accomplished through analog connected to the FXO (Foreign Exchange
Office) port, phone handset connected to the FXS (Foreign Exchange
Station) ports, digital lines connected to the BRI (Basic rate ISDN) ports,
and E1(Basic Rate ISDN PRI) ports. The X204 series cards allow Asterisk
to connect to your phone network, creating an office type telephony
environment.
Figure 1 Topology