Overview
This section describes configuration of the Gateway application. The Gateway application refers to IP-to-Tel and Tel-to-IP call routing. The term Tel refers to:
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FXS equipment such as a fax machine or plain old telephone service (POTS) |
IP-to-Tel refers to calls received by the device from the IP network and then sent to the an analog endpoint connected directly or indirectly to the device. Tel-to-IP refers to calls received by the device from an analog endpoint connected directly or indirectly to the device or the and then sent to the IP network.
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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.
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