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This article describes the steps necessary for configuring the Sonus SBC 1000 to route incoming PSTN calls to an FXS port. In the example below, ISDN/PSTN calls arriving with four digits are routed to an FXS port.
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The FXS card does not function with older versions of the Sonus SBC 1000 firmware/software. Should you need to upgrade your Sonus SBC 1000 unit, you must follow the Sonus SBC 1000/2000 Upgrade Guide.
The Sonus SBC 1000 system must have the necessary licenses to make calls. In addition to CAS and DSP channels, and depending upon the types of calls, the Transcoding and SIP calls licenses may also be necessary as shown below:
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