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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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FXS Card State and Port Status
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- Check the state of the FXS card.
Verify that the state for the Telco Module(s) indicated in the Cards/Modules Status pane is Activated.
Caption 0 Figure 1 Cards/Modules Status 
Port Status
- Check the Port Status to verify that the FXS ports are functional.
Verify that the Admin State and Service Status for each port indicates Up as shown below.
Caption 0 Figure 1 Port Status 
FXS not Activated and Up? Did you upgrade the boot image and Sonus SBC 1000 base software versions as outlined above.
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Verify that your FXS devices are connected to the ports you plan to configure.
Later in this article, you will create a CAS Signaling Group and assign channels and ports, they must match the physical ports to which the FXS devices are connected. See the figure below.
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The FXS Ports and Channels in a CAS Signaling Group | The FXS Monitoring View |
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Create an FXS Signaling Profile for CAS.
Caption 0 Figure 1 Create FXS Signaling Profile 
Create a CAS Signaling Group.
Make sure to set the Channel Hunting to Own Number, otherwise the first free channel will answer every call (regardless of any other configuration settings).Caption 0 Figure 1 Create CAS Signaling Group 
Create an Assigned Channel and apply the desired phone number to the corresponding FXS port.
You may add all of the port/number combinations for FXS in a single Signaling Group.Caption 0 Figure 1 Create Assigned Channel 
Verify that the CAS Signaling group is configured as shown below.
Caption 0 Figure 1 Verify Configuration Of CAS Signaling Group 
- Verify that the FXS-attached phone(s) now have dial-tone.
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Create a Transformation Table for the FXS calls called PSTN to FXS:
Caption 0 Figure 1 Create Transformation Table 
Create a Transformation entry to that table called PSTN to FXS Transformation.
Caption 0 Figure 1 Create Transformation Table Entry 
Add a call route table called From ISDN to SIP.
Caption 0 Figure 1 Add Call Route Table 
Add a call route entry to that table which employs the transformation created in the previous step called PSTN to FXS.
Caption 0 Figure 1 Create Call Routing Entry 
Resequence the FXS call route.
Caption 0 Figure 1 Resequence FXS Call Route 
Calls should now work from ISDN to FXS.
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